PPTX, PDF47 views

Comprehensive Exploration of Light and Sound Properties and Their Applications

Explore the properties of light and sound waves and their applications in communication, navigation, medicine, and entertainment, highlighting their significance in daily life.

Science◦

Objectives
Describe
Describe the
different
properties of light
and sound waves.
Examine
Examine how light
and sound waves
properties are
applied in
communications
technology,
navigation,
medicine and
entertainment.
Recognize
Recognize the
importance of the
application of the
properties of light
and sound in daily
life.

Identify It
1. The phenomenon where light bounces off a
surface and changes direction.
2. It is the bending of light rays as they pass from
one medium to another.
3. It is the distance between two consecutive
points in phase on the wave.
4. The height of a wave which is measured from its
equilibrium position.
5. It refers to the number of cycles or oscillations a
sound wave completes in one second.

4-Pics-in-1-Concept
1. What are being shown in the
pictures?
2. What are the physics concepts
related to the pictures?
3. In what fields are these technologies
related to?

Properties of Light
- TRAVELS IN STRAIGHT
LINES
- SPEED: 3.0 × 10⁸ M/S - CAN TRAVEL IN
VACUUM

$Properties of Light - Reflection: bouncing back - Refraction: bending - Diffraction: bending around corners - Dispersion: color separation - Interference: combination/cancellation - Polarization: vibration$

Applications of Light in
Communication
- Fiber optics
- Satellite lasers
- Morse code signals

Applications of Light in Navigation
- LIGHTHOUSES - AIRCRAFT SIGNAL
LIGHTS
- LIGHT SENSORS IN GPS

Applications of Light in Medicine
- Laser surgeries - Endoscopy
- X-rays and CT
scans

Applications of Light in Entertainment
- LIGHT SHOWS - PROJECTORS - 3D/HOLOGRAM
DISPLAYS

Properties of Sound
- Needs a medium
- Slower than light
- Cannot travel in vacuum

Properties of Sound
- FREQUENCY =
PITCH
- AMPLITUDE =
LOUDNESS
- ECHO =
REFLECTION
- RESONANCE =
NATURAL VIBRATION

Applications of Sound in Communication
- TELEPHONES - MICROPHONES - PUBLIC ADDRESS
SYSTEMS

Applications of Sound in Navigation
- SONAR IN SHIPS - SUBMARINE
ECHOLOCATION
- AIRCRAFT SOUND
MONITORS

Applications of Sound in Medicine
- ULTRASOUND IMAGING - HEARING AIDS - LITHOTRIPSY

Applications of Sound in Entertainment
- MUSIC ACOUSTICS - SURROUND SYSTEMS - GAME EFFECTS

How Fiber Optics Work
• - Light enters fiber core
• - Total internal reflection
• - Data in light pulses

How Ultrasound Works
• - Sends high-frequency sound
• - Echoes return
• - Image created

How SONAR Works
• - Emits sound underwater
• - Measures echo return time
• - Calculates distance

Comprehensive Exploration of Light and Sound Properties and Their Applications

1.
Understanding and Using Lightand Sound SHS – General Science – T1 – L9
2.
Objectives Describe Describe the different properties oflight and sound waves. Examine Examine how light and sound waves properties are applied in communications technology, navigation, medicine and entertainment. Recognize Recognize the importance of the application of the properties of light and sound in daily life.
3.
Identify It 1. Thephenomenon where light bounces off a surface and changes direction. 2. It is the bending of light rays as they pass from one medium to another. 3. It is the distance between two consecutive points in phase on the wave. 4. The height of a wave which is measured from its equilibrium position. 5. It refers to the number of cycles or oscillations a sound wave completes in one second.
5.
4-Pics-in-1-Concept 1. What arebeing shown in the pictures? 2. What are the physics concepts related to the pictures? 3. In what fields are these technologies related to?
6.
Properties of Light -TRAVELS IN STRAIGHT LINES - SPEED: 3.0 × 10⁸ M/S - CAN TRAVEL IN VACUUM
7.
Properties of Light -Reflection: bouncing back - Refraction: bending - Diffraction: bending around corners - Dispersion: color separation - Interference: combination/cancellation - Polarization: vibration
9.
Applications of Lightin Communication - Fiber optics - Satellite lasers - Morse code signals
10.
Applications of Lightin Navigation - LIGHTHOUSES - AIRCRAFT SIGNAL LIGHTS - LIGHT SENSORS IN GPS
11.
Applications of Lightin Medicine - Laser surgeries - Endoscopy - X-rays and CT scans
12.
Applications of Lightin Entertainment - LIGHT SHOWS - PROJECTORS - 3D/HOLOGRAM DISPLAYS
13.
Properties of Sound -Needs a medium - Slower than light - Cannot travel in vacuum
14.
Properties of Sound -FREQUENCY = PITCH - AMPLITUDE = LOUDNESS - ECHO = REFLECTION - RESONANCE = NATURAL VIBRATION
15.
Applications of Soundin Communication - TELEPHONES - MICROPHONES - PUBLIC ADDRESS SYSTEMS
16.
Applications of Soundin Navigation - SONAR IN SHIPS - SUBMARINE ECHOLOCATION - AIRCRAFT SOUND MONITORS
17.
Applications of Soundin Medicine - ULTRASOUND IMAGING - HEARING AIDS - LITHOTRIPSY
18.
Applications of Soundin Entertainment - MUSIC ACOUSTICS - SURROUND SYSTEMS - GAME EFFECTS
19.
How Fiber OpticsWork • - Light enters fiber core • - Total internal reflection • - Data in light pulses
20.
How Ultrasound Works •- Sends high-frequency sound • - Echoes return • - Image created
21.
How SONAR Works •- Emits sound underwater • - Measures echo return time • - Calculates distance
22.
Assessment
23.
Subscribe: Sir RollyFranco on YouTube

Editor's Notes

#1 Welcome to our General Science lesson! Ngayon, aalamin natin ang mga katangian at gamit ng light at sound – paano ito nakaapekto sa ating komunikasyon, kalusugan at nagagamit sa entertainment?
#3 1. Reflection 2. refraction 3. wavelength 4. amplitude 5. frequency
#6 Ang light ay electromagnetic wave. Kayang mag-travel kahit walang medium—kaya nakakarating sa Earth ang sunlight mula sa araw. Speed ● Light travels at ~300,000 km/s (3 × 10⁸ m/s) in a vacuum ● Slower in materials like glass or water Wavelength (λ) ● Distance between two consecutive peaks or troughs. ● Determines color in visible light: o Violet ≈ 400 nm o Red ≈ 700 nm Frequency (f) ● Number of wave cycles per second (Hz) ● Higher frequency = more energy ● Frequency × Wavelength = Speed of Light (c = f × λ
#7 Reflection : Light bounces off a surface Angle of incidence = angle of reflection Refraction ● Light bends when passing from one medium to another (e.g., air to water) ● Caused by a change in speed Diffraction ● Bending of light around obstacles or through small openings Interference ● When two light waves meet, they can combine (constructive) or cancel out (destructive) Polarization ● Light waves normally vibrate in all directions perpendicular to their path. Polarization filters allow waves vibrating in only one direction Dispersion ● Splitting of white light into its colors (e.g., in a prism) ● Happens because different wavelengths refract at different angles
#9 Sa communication, ginagamit ang light sa fiber optics—may ultra-fast internet dahil dito! 1. Fiber Optics Ang fiber optics ay gumagamit ng light (liwanag) para magpadala ng information o data sa napakabilis na paraan. Dumadaan ang ilaw sa manipis na glass o plastic cable na tinatawag na optical fiber. Habang tumatalbog ang ilaw sa loob ng cable (through total internal reflection), hindi ito madaling mawala kaya mabilis at malinaw ang pagpapadala ng data. Example: Internet connection (PLDT Fiber, Globe Fiber) , Telephone calls, Cable TV, Hospital cameras (endoscope) 2. Satellite Lasers Ang satellite lasers ay gumagamit ng laser light para magpadala ng impormasyon mula sa isang satellite papunta sa isa pang satellite o kaya naman sa Earth. Mas mabilis at mas maraming data ang kayang ipadala ng laser kumpara sa ordinaryong radio waves. Example: Satellite communication, Space missions (NASA), Weather satellites, Military communication 3. Morse Code Signals Ang Morse Code ay paraan ng pagpapadala ng mensahe gamit ang mahaba at maikling signal. Pwede itong gawin gamit ang: Flashlight, Laser pointer, Signal lamp Ang bawat letra ay may sariling pattern ng dots (•) at dashes (—). Example: Letter A = • —, Letter B = — • • •, SOS =• • • — — — • • • Example Fiber OpticsLight travels through glass/plastic cables to send data very fast.Internet, cable TV, phone calls Satellite LasersLaser beams transmit information between satellites or between Earth and satellites.GPS, space communication, weather satellites Morse Code SignalsShort and long flashes of light represent letters and messages.SOS using a flashlight, lighthouse signaling
#10 Sa navigation, light signals ang tumutulong sa mga piloto o marino para makita ang direksyon, lalo na sa gabi. 1. Lighthouses Ang lighthouse ay isang mataas na tore na may napakalakas na ilaw sa tuktok. Ang ilaw nito ay umiikot o kumikislap upang makita ng mga barko kahit gabi o maulan. Tinutulungan nito ang mga kapitan ng barko na malaman ang kanilang lokasyon at maiwasan ang mga bato, reefs, o mababaw na bahagi ng dagat. Example: Gabing paglalayag ng barko , Maulap o mahamog na panahon, Pagpasok ng barko sa pantalan (harbor) 2. Aircraft Signal Lights Ang aircraft signal lights ay mga ilaw na nakakabit sa eroplano upang makita ito ng ibang piloto at ng airport, lalo na sa gabi o kapag masama ang panahon. May iba't ibang kulay ang mga ilaw at bawat isa ay may kahulugan. Common Aircraft Lights: 🔴 Red Light – Kaliwang pakpak (left wing),🟢 Green Light – Kanang pakpak (right wing), ⚪ White Light – Likod ng eroplano, 🔴⚪ Blinking Lights (Beacon/Strobe) – Nagbibigay babala na gumagalaw o paparating ang eroplano. Example: Night flights, Landing and takeoff, Foggy or rainy weather 3. Light Sensors in GPS Ang light sensor ay isang maliit na device na nakakakita kung gaano kaliwanag o kadilim ang paligid. Sa mga GPS devices, smartphones, at car navigation systems, ginagamit ang light sensor upang awtomatikong baguhin ang liwanag ng screen. Kapag maliwanag ang paligid, lumiliwanag ang screen para madaling makita. Kapag madilim naman, humihina ang ilaw upang hindi masilaw ang gumagamit at makatipid sa battery. Example: Google Maps sa cellphone, GPS sa kotse, Smartwatches, Car navigation systems Example LighthousesMalalakas na ilaw na gumagabay sa mga barko at tumutulong maiwasan ang panganib sa dagat.Ships, ports, coastal navigation Aircraft Signal LightsMga ilaw sa eroplano na nagpapakita ng posisyon at nagbibigay babala sa ibang piloto at airport.Night flights, landing, takeoff Light Sensors in GPSSensors na awtomatikong nag-aadjust ng screen brightness para madaling makita ang GPS display.Smartphones, car GPS, smartwatches
#11 Sa medicine, ginagamit ang light waves para tumingin sa loob ng katawan—mula X-rays hanggang laser eye surgery. 1. Laser Surgeries Ang laser ay isang very strong and focused beam of light. Dahil napaka-precise nito, ginagamit ito ng mga doktor sa operasyon nang hindi kailangang gumawa ng malaking hiwa. Mas kaunti ang pagdurugo, mas mabilis ang paggaling, at mas mababa ang panganib ng impeksyon. Examples: LASIK eye surgery – para itama ang paningin. Removing kidney stones – binabasag ng laser ang maliliit na bato sa kidney. Removing tumors – ginagamit sa ilang uri ng cancer treatment. Dental procedures – paggamot sa gilagid at ngipin. 2. Endoscopy Ang endoscopy ay isang procedure kung saan gumagamit ang doktor ng mahaba at manipis na tube na may camera at ilaw (light) sa dulo. Ang ilaw ang nagpapaliwanag sa loob ng katawan upang malinaw na makita ng doktor ang mga organs sa monitor. Hindi na kailangang gumawa ng malaking hiwa para makita ang loob ng katawan. Examples: Pagsusuri ng stomach (gastroscopy), Pagsusuri ng large intestine (colonoscopy), Pagsusuri ng esophagus, Pagtukoy ng ulcers, polyps, o pagdurugo 3. X-rays and CT Scans Ang X-rays ay gumagamit ng X-ray radiation, isang uri ng electromagnetic wave na may mas mataas na energy kaysa visible light. Nakakadaan ito sa balat at kalamnan, ngunit nahaharangan ng matitigas na bahagi tulad ng buto, kaya nakikita ang larawan ng loob ng katawan. Ang CT scan (Computed Tomography) ay gumagamit ng maraming X-ray images mula sa iba't ibang anggulo. Pinagsasama ng computer ang mga ito upang makagawa ng detalyadong 3D images ng loob ng katawan. Examples: Paghanap ng broken bones, Pagsusuri ng lungs (halimbawa, pneumonia), Pag-detect ng tumors, Pag-check ng internal injuries pagkatapos ng aksidente Example Laser SurgeriesGumagamit ng concentrated light para sa precise at minimally invasive operations.LASIK eye surgery, kidney stone removal, dental treatment EndoscopyGumagamit ng ilaw at camera upang makita ang loob ng katawan nang hindi gumagawa ng malaking hiwa.Gastroscopy, colonoscopy X-rays and CT ScansGumagamit ng X-rays upang makagawa ng images ng loob ng katawan para sa diagnosis.Broken bones, lung diseases, tumors, internal injuries
#12 Light brings excitement in concerts and movies! Projectors, 3D glasses, and holograms all rely on light waves. 1. Light Shows Ang light show ay gumagamit ng iba't ibang colored lights, lasers, at special lighting effects upang gawing mas exciting at maganda ang isang event o performance. Ang mga ilaw ay maaaring kumislap, magpalit ng kulay, o gumalaw kasabay ng music. Examples: Concerts, Music festivals, Fireworks displays, Theme parks, Christmas light displays 2. Projectors Ang projector ay gumagamit ng light upang ipakita ang larawan o video sa isang malaking screen o pader. May malakas na ilaw sa loob ng projector na dumadaan sa image o video at ipinapakita ito nang mas malaki. Examples: Movie theaters, School classrooms, Business presentations, Home theaters 3. 3D/Hologram Displays Ang 3D display at hologram ay gumagamit ng light upang makalikha ng larawan na parang may lalim (depth) o tila lumulutang sa hangin. Sa 3D movies, gumagamit ng special glasses upang makita ang epekto ng depth. Sa hologram, ang image ay mukhang three-dimensional kahit wala itong tunay na solid object. Examples: 3D movies, Museum exhibits, Concert holograms, Product advertisements, Science exhibits Light ShowsGumagamit ng colored lights at lasers para gumawa ng special visual effects.Concerts, festivals, fireworks, Christmas displays ProjectorsGumagamit ng malakas na ilaw para ipakita ang images at videos sa malaking screen.Movie theaters, classrooms, presentations 3D/Hologram DisplaysGumagamit ng light upang makagawa ng images na may depth o mukhang lumulutang.3D movies, hologram concerts, museum exhibits
#13 Kabaligtaran ng light, ang sound ay mechanical wave. Kailangan nito ng medium—kaya walang tunog sa outer space! 1. Needs a Medium Ang sound ay kailangang may dadaanan para makarating sa ating tainga. Ang tawag dito ay medium. Ang medium ay maaaring: Solid (kahoy, bakal) Liquid (tubig) Gas (hangin) Kung walang medium, walang maririnig na tunog. 2. Slower than Light Ang sound ay mas mabagal maglakbay kaysa sa light. Kaya kapag may kidlat at kulog: Una mong nakikita ang kidlat (light). Pagkatapos mo maririnig ang kulog (sound). 3. Cannot Travel in Vacuum Ang vacuum ay isang lugar na walang hangin o anumang medium. Dahil kailangan ng sound ng medium, hindi ito makakalakbay sa vacuum. Example: Sa outer space, hindi maririnig ang pagsabog o sigawan dahil halos walang hangin doon. Property Simple Meaning Example Needs a MediumKailangan ng hangin, tubig, o solid para makapaglakbay ang sound.Pakikipag-usap sa kaibigan Slower than LightMas mabilis ang light kaysa sound.Makikita muna ang kidlat bago marinig ang kulog Cannot Travel in VacuumHindi makakapaglakbay ang sound kung walang medium.Walang maririnig na tunog sa outer space
#14 Mas mataas ang frequency, mas matinis ang tunog. Echo? Reflection 'yan ng sound—parang SONAR! 1. Frequency = Pitch Frequency is the number of vibrations a sound makes in one second. The pitch is how high or low the sound is. High frequency = High pitch Low frequency = Low pitch 2. Amplitude = Loudness Amplitude is the height of the sound wave. It determines how loud or how soft the sound is. Large amplitude = Loud sound Small amplitude = Soft sound Examples: A person shouting has a large amplitude. A person whispering has a small amplitude. 3. Echo = Reflection An echo happens when a sound wave hits a hard surface (like a wall or mountain) and bounces back to your ears. Ito ay katulad ng reflection of light, pero sound ang tumatalbog. Examples: Shouting in a cave Calling across a canyon Empty gymnasium or auditorium 4. Resonance = Natural Vibration Resonance happens when an object vibrates naturally because it receives vibrations that match its own natural frequency. Kapag pareho ang vibration, mas lumalakas ang pag-vibrate ng object. Examples: A guitar string vibrates when another string with the same note is played. A tuning fork makes another tuning fork of the same frequency vibrate. Example Frequency = PitchFrequency tells how high or low a sound is.Whistle (high pitch), drum (low pitch) Amplitude = LoudnessAmplitude tells how loud or soft a sound is.Shouting (loud), whispering (soft) Echo = ReflectionSound bounces back after hitting a hard surface.Shouting in a cave Resonance = Natural VibrationAn object vibrates more when it receives matching vibrations.Guitar strings, tuning forks
#15 Sa communication, halos lahat ng devices na may boses o tunog ay gumagamit ng sound waves—telepono, mic, speakers. 1. Telephones Ang telephone ay ginagamit para makapag-usap ang dalawang tao kahit magkalayo sila. Kapag nagsasalita ka, ang iyong boses (sound waves) ay kino-convert ng telepono sa electrical o digital signals. Ipinapadala ang mga signal na ito sa ibang telepono, kung saan ibinabalik ito bilang sound para marinig ng kausap. 2. Microphones Ang microphone ay isang device na kumukuha ng iyong boses at ginagawang electrical signal upang mapalakas o ma-record ang tunog. Hindi nito ginagawa ang tunog—kinukuha at kino-convert lamang nito ang sound para magamit ng speaker o recorder. Example: Singing in karaoke Classroom discussions Radio broadcasting 3. Public Address (PA) Systems Simple Explanation (Taglish) Ang Public Address (PA) System ay ginagamit upang palakasin ang boses para marinig ng maraming tao sa isang lugar. Karaniwang binubuo ito ng: Microphone – kumukuha ng boses. Amplifier – nagpapalakas ng signal. Speaker – naglalabas ng mas malakas na tunog Examples: School flag ceremonies, Church services, Concerts, Sports events Example TelephonesKino-convert ang boses sa electrical o digital signals at ibinabalik ito bilang sound sa kabilang telepono.Mobile phones, landlines, video calls MicrophonesKinukuha ang boses at kino-convert ito sa electrical signal para ma-record o mapalakas.Karaoke, podcasts, classrooms Public Address SystemsPinapalakas ang boses gamit ang microphone, amplifier, at speakers.School assemblies, churches, concerts
#16 Tunog ang gamit sa sonar (sound navigation ranging)—nagre-reflect ito sa seafloor para malaman ng barko ang lalim o kung may hadlang. 1. SONAR in Ships SONAR stands for Sound Navigation and Ranging. Ang SONAR ay nagpapadala ng sound waves sa ilalim ng tubig. Kapag tumama ang sound sa isang bagay (tulad ng isda, bato, o seabed), bumabalik ito bilang echo. Sa pamamagitan ng echo, nalalaman ng barko kung gaano kalayo o gaanong kalalim ang isang bagay. Examples: Measuring the depth of the ocean, Finding schools of fish, Detecting underwater rocks or obstacles 2. Submarine Echolocation Ang submarine ay gumagamit din ng sound waves upang makita ang mga bagay sa ilalim ng dagat. Dahil hindi nakakapasok ang liwanag nang malalim sa tubig, mas epektibong gamitin ang sound para matukoy ang lokasyon ng ibang submarines, barko, o mga hadlang sa ilalim ng dagat. Examples: Detecting other submarines, Avoiding underwater obstacles, Safe underwater navigation 3. Aircraft Sound Monitors Ang aircraft sound monitors ay mga devices na nakikinig at sumusukat sa tunog ng eroplano. Ginagamit ang mga ito upang: Subaybayan ang ingay ng aircraft., Tiyaking ligtas ang operasyon ng makina., Suriin kung sumusunod ang eroplano sa noise regulations malapit sa mga airport., Hindi ito ang pangunahing gamit ng eroplano sa pag-navigate, ngunit nakakatulong ito sa safe operation at sa pag-monitor ng kondisyon ng aircraft. Example SONAR in ShipsGumagamit ng sound waves at echo upang sukatin ang lalim ng dagat at makita ang mga bagay sa ilalim ng tubig.Finding fish, measuring ocean depth Submarine EcholocationGumagamit ng echo upang matukoy ang lokasyon ng mga bagay sa ilalim ng dagat.Detecting submarines, avoiding obstacles Aircraft Sound MonitorsNakikinig at sumusukat sa tunog ng aircraft para sa safety at noise monitoring.Engine monitoring, airport noise checks
#17 Ultrasound—isang non-invasive na paraan para makita ang baby sa tiyan. Tunog ang gamit dito, hindi light! Lithotripsy – breaking (by shock waves with a surgical instrument) of calculus in the urinary system into pieces small enough to be voided or washed out 1. Ultrasound Imaging Ang ultrasound ay gumagamit ng high-frequency sound waves (sound na hindi naririnig ng tao) upang makagawa ng larawan ng loob ng katawan. Kapag tumama ang sound waves sa mga organs o baby sa sinapupunan, bumabalik ang mga ito bilang echo. Ginagamit ng computer ang mga echo upang makagawa ng image. Examples: Checking a baby during pregnancy, Examining the heart, Looking at the kidneys, liver, or other organs 2. Hearing Aids Ang hearing aid ay isang maliit na electronic device na tumutulong sa mga taong mahina ang pandinig. Kinukuha nito ang mga tunog sa paligid, pinapalakas ang mga ito, at ipinapadala sa tainga upang mas malinaw na marinig ng gumagamit. Examples: Elderly people with hearing loss, People born with hearing difficulties, Patients recovering from certain ear conditions 3. Lithotripsy Ang lithotripsy ay isang medical treatment na gumagamit ng high-energy sound waves upang durugin ang kidney stones o gallstones sa maliliit na piraso. Kapag nadurog na ang mga bato, mas madali na itong mailabas ng katawan sa pamamagitan ng ihi (para sa kidney stones). Sa maraming kaso, hindi na kailangan ng malaking operasyon. Examples: Treating kidney stones, Treating some urinary tract stones Example Ultrasound ImagingGumagamit ng high-frequency sound waves upang makagawa ng larawan ng loob ng katawan.Pregnancy check-up, heart and organ examination Hearing AidsPinapalakas ang tunog upang mas malinaw na marinig ng taong may hearing loss.Hearing assistance for children and adults LithotripsyGumagamit ng high-energy sound waves upang durugin ang kidney stones nang hindi kailangan ng malaking operasyon.Kidney stone treatment
#18 Bawat sinehan, concert, at video game ay mas pinapaganda ng tamang tunog—mula sa surround sound hanggang bass effects! 1. Music Acoustics Music acoustics is the study of how sound is produced, travels, and is heard in music. It helps musicians and engineers make music sound clear, balanced, and pleasant. Examples: Concert halls designed for better sound, Recording studios, Musical instruments like guitars, pianos, and drums 2. Surround Sound Systems Ang surround sound system ay gumagamit ng maraming speakers na nakapalibot sa mga tagapakinig. Dahil dito, parang nanggagaling ang tunog sa iba't ibang direksyon, kaya mas realistic ang pakiramdam. Examples: Movie theaters, Home theaters, Concert venues 3. Game Effects Ang game sound effects ay mga tunog na ginagamit sa video games upang gawing mas exciting at mas realistic ang paglalaro. Tinutulungan din nito ang player na malaman kung ano ang nangyayari sa laro. Examples: Footsteps of a character, Explosion sounds, Car engine sounds in racing games, Background music Example Music AcousticsPinag-aaralan kung paano gagawing malinaw at maganda ang tunog ng musika.Concerts, recording studios, musical instruments Surround Sound SystemsGumagamit ng maraming speakers upang magbigay ng realistic na tunog mula sa iba't ibang direksyon.Movie theaters, home theaters Game EffectsGumagamit ng sound effects at music upang gawing mas exciting at realistic ang video games.Footsteps, explosions, background music
#19 Ang light ay ‘kinukulong’ sa loob ng fiber dahil sa total internal reflection—kaya mabilis at efficient ang data transfer. What are the different properties of light mentioned in the video? Why are fiber optics cables preferred to be used in modern communication? How does fiber optics work?
#20 Tumatama ang sound waves sa loob ng katawan, bumabalik, at ginagawang larawan ng computer—safe ito, walang radiation! What is ultrasound? 2. How is an ultrasound image formed? 3. How is ultrasound used today? 4. What are the advantages of ultrasound? 1. What is Ultrasound? Ultrasound is a type of sound wave with a very high frequency. Its frequency is higher than 20,000 Hz, so humans cannot hear it. Doctors use ultrasound because it is safe and can create images of the inside of the body without surgery. Examples: Checking a baby during pregnancy, Examining the heart, Looking at the kidneys, liver, and other organs 2. How is an Ultrasound Image Formed? An ultrasound machine uses a device called a transducer. Here's how it works: 1. The transducer sends high-frequency sound waves into the body. 2. The sound waves hit organs or tissues inside the body. 3. The sound waves bounce back as echoes. 4. The ultrasound machine receives the echoes. 5. A computer changes the echoes into an image that appears on the screen. Example: During pregnancy, the sound waves bounce off the baby, and the computer creates a picture of the baby on the monitor. 3. How is Ultrasound Used Today? Today, ultrasound is widely used in hospitals and clinics to help doctors diagnose and monitor different medical conditions. Common Uses: 👶 Pregnancy check-ups – to monitor the baby's growth and heartbeat. ❤️ Heart examination (Echocardiogram) – to check how the heart is working. 🩺 Checking internal organs – such as the liver, kidneys, gallbladder, and bladder. 🩸 Blood flow examination (Doppler ultrasound) – to see how blood moves through the blood vessels. 💉 Guiding medical procedures – such as needle biopsies and injections. 4. What are the Advantages of Ultrasound? Ultrasound has many advantages, which is why it is commonly used by doctors. Advantages: ✅ Safe - It uses sound waves, not harmful radiation like X-rays. ✅ Painless - No surgery or large cuts are needed. ✅ Fast - The results can be seen immediately on the monitor. ✅ Real-time Images - Doctors can watch moving organs or even the baby moving during the examination. ✅ Non-invasive - The machine can examine the inside of the body without opening it. Question Simple Answer 1. What is ultrasound?Ultrasound is a high-frequency sound wave that humans cannot hear. It is used to create images inside the body. 2. How is an ultrasound image formed?A transducer sends sound waves into the body. The echoes bounce back and a computer turns them into an image. 3. How is ultrasound used today?It is used to check babies during pregnancy, examine the heart and organs, monitor blood flow, and guide some medical procedures. 4. What are the advantages of ultrasound?It is safe, painless, fast, non-invasive, and provides real-time images of the inside of the body.
#21 Ang SONAR ay parang tenga ng barko—pinapakinggan kung gaano katagal bumalik ang tunog para sukatin ang lalim. What does the word SONAR stand for? 2. What property of sound wave is involved in sonar? 3. Illustrate how sonar works in marine exploration. 1. What does the word SONAR stand for? SONAR stands for Sound Navigation and Ranging. It is a technology that uses sound waves to detect, locate, and measure the distance of objects underwater. 2. What property of sound wave is involved in SONAR? The property of sound used in SONAR is echo (reflection of sound). When sound waves hit an object, they bounce back as an echo. The echo helps determine the object's location and distance. 3. Illustrate how SONAR works in marine exploration. A ship sends sound waves into the water. 1. The sound waves travel until they hit an object, such as a fish, submarine, or the seafloor. 2. The sound waves bounce back as echoes. 3. The ship receives the echoes and calculates the distance and location of the object. Example: A fishing boat uses SONAR to find schools of fish, while research ships use it to map the ocean floor. Simple Analogy: Para kang sumigaw sa kuweba. Kapag bumalik ang echo, malalaman mong may bagay o pader sa unahan. Ganito rin ang ginagawa ng SONAR sa ilalim ng dagat.

Comprehensive Exploration of Light and Sound Properties and Their Applications

1.
Understanding and Using Lightand Sound SHS – General Science – T1 – L9
2.
Objectives Describe Describe the different properties oflight and sound waves. Examine Examine how light and sound waves properties are applied in communications technology, navigation, medicine and entertainment. Recognize Recognize the importance of the application of the properties of light and sound in daily life.
3.
Identify It 1. Thephenomenon where light bounces off a surface and changes direction. 2. It is the bending of light rays as they pass from one medium to another. 3. It is the distance between two consecutive points in phase on the wave. 4. The height of a wave which is measured from its equilibrium position. 5. It refers to the number of cycles or oscillations a sound wave completes in one second.
5.
4-Pics-in-1-Concept 1. What arebeing shown in the pictures? 2. What are the physics concepts related to the pictures? 3. In what fields are these technologies related to?
6.
Properties of Light -TRAVELS IN STRAIGHT LINES - SPEED: 3.0 × 10⁸ M/S - CAN TRAVEL IN VACUUM
7.
Properties of Light -Reflection: bouncing back - Refraction: bending - Diffraction: bending around corners - Dispersion: color separation - Interference: combination/cancellation - Polarization: vibration
9.
Applications of Lightin Communication - Fiber optics - Satellite lasers - Morse code signals
10.
Applications of Lightin Navigation - LIGHTHOUSES - AIRCRAFT SIGNAL LIGHTS - LIGHT SENSORS IN GPS
11.
Applications of Lightin Medicine - Laser surgeries - Endoscopy - X-rays and CT scans
12.
Applications of Lightin Entertainment - LIGHT SHOWS - PROJECTORS - 3D/HOLOGRAM DISPLAYS
13.
Properties of Sound -Needs a medium - Slower than light - Cannot travel in vacuum
14.
Properties of Sound -FREQUENCY = PITCH - AMPLITUDE = LOUDNESS - ECHO = REFLECTION - RESONANCE = NATURAL VIBRATION
15.
Applications of Soundin Communication - TELEPHONES - MICROPHONES - PUBLIC ADDRESS SYSTEMS
16.
Applications of Soundin Navigation - SONAR IN SHIPS - SUBMARINE ECHOLOCATION - AIRCRAFT SOUND MONITORS
17.
Applications of Soundin Medicine - ULTRASOUND IMAGING - HEARING AIDS - LITHOTRIPSY
18.
Applications of Soundin Entertainment - MUSIC ACOUSTICS - SURROUND SYSTEMS - GAME EFFECTS
19.
How Fiber OpticsWork • - Light enters fiber core • - Total internal reflection • - Data in light pulses
20.
How Ultrasound Works •- Sends high-frequency sound • - Echoes return • - Image created
21.
How SONAR Works •- Emits sound underwater • - Measures echo return time • - Calculates distance
22.
Assessment
23.
Subscribe: Sir RollyFranco on YouTube

Editor's Notes

#1 Welcome to our General Science lesson! Ngayon, aalamin natin ang mga katangian at gamit ng light at sound – paano ito nakaapekto sa ating komunikasyon, kalusugan at nagagamit sa entertainment?
#3 1. Reflection 2. refraction 3. wavelength 4. amplitude 5. frequency
#6 Ang light ay electromagnetic wave. Kayang mag-travel kahit walang medium—kaya nakakarating sa Earth ang sunlight mula sa araw. Speed ● Light travels at ~300,000 km/s (3 × 10⁸ m/s) in a vacuum ● Slower in materials like glass or water Wavelength (λ) ● Distance between two consecutive peaks or troughs. ● Determines color in visible light: o Violet ≈ 400 nm o Red ≈ 700 nm Frequency (f) ● Number of wave cycles per second (Hz) ● Higher frequency = more energy ● Frequency × Wavelength = Speed of Light (c = f × λ
#7 Reflection : Light bounces off a surface Angle of incidence = angle of reflection Refraction ● Light bends when passing from one medium to another (e.g., air to water) ● Caused by a change in speed Diffraction ● Bending of light around obstacles or through small openings Interference ● When two light waves meet, they can combine (constructive) or cancel out (destructive) Polarization ● Light waves normally vibrate in all directions perpendicular to their path. Polarization filters allow waves vibrating in only one direction Dispersion ● Splitting of white light into its colors (e.g., in a prism) ● Happens because different wavelengths refract at different angles
#9 Sa communication, ginagamit ang light sa fiber optics—may ultra-fast internet dahil dito! 1. Fiber Optics Ang fiber optics ay gumagamit ng light (liwanag) para magpadala ng information o data sa napakabilis na paraan. Dumadaan ang ilaw sa manipis na glass o plastic cable na tinatawag na optical fiber. Habang tumatalbog ang ilaw sa loob ng cable (through total internal reflection), hindi ito madaling mawala kaya mabilis at malinaw ang pagpapadala ng data. Example: Internet connection (PLDT Fiber, Globe Fiber) , Telephone calls, Cable TV, Hospital cameras (endoscope) 2. Satellite Lasers Ang satellite lasers ay gumagamit ng laser light para magpadala ng impormasyon mula sa isang satellite papunta sa isa pang satellite o kaya naman sa Earth. Mas mabilis at mas maraming data ang kayang ipadala ng laser kumpara sa ordinaryong radio waves. Example: Satellite communication, Space missions (NASA), Weather satellites, Military communication 3. Morse Code Signals Ang Morse Code ay paraan ng pagpapadala ng mensahe gamit ang mahaba at maikling signal. Pwede itong gawin gamit ang: Flashlight, Laser pointer, Signal lamp Ang bawat letra ay may sariling pattern ng dots (•) at dashes (—). Example: Letter A = • —, Letter B = — • • •, SOS =• • • — — — • • • Example Fiber OpticsLight travels through glass/plastic cables to send data very fast.Internet, cable TV, phone calls Satellite LasersLaser beams transmit information between satellites or between Earth and satellites.GPS, space communication, weather satellites Morse Code SignalsShort and long flashes of light represent letters and messages.SOS using a flashlight, lighthouse signaling
#10 Sa navigation, light signals ang tumutulong sa mga piloto o marino para makita ang direksyon, lalo na sa gabi. 1. Lighthouses Ang lighthouse ay isang mataas na tore na may napakalakas na ilaw sa tuktok. Ang ilaw nito ay umiikot o kumikislap upang makita ng mga barko kahit gabi o maulan. Tinutulungan nito ang mga kapitan ng barko na malaman ang kanilang lokasyon at maiwasan ang mga bato, reefs, o mababaw na bahagi ng dagat. Example: Gabing paglalayag ng barko , Maulap o mahamog na panahon, Pagpasok ng barko sa pantalan (harbor) 2. Aircraft Signal Lights Ang aircraft signal lights ay mga ilaw na nakakabit sa eroplano upang makita ito ng ibang piloto at ng airport, lalo na sa gabi o kapag masama ang panahon. May iba't ibang kulay ang mga ilaw at bawat isa ay may kahulugan. Common Aircraft Lights: 🔴 Red Light – Kaliwang pakpak (left wing),🟢 Green Light – Kanang pakpak (right wing), ⚪ White Light – Likod ng eroplano, 🔴⚪ Blinking Lights (Beacon/Strobe) – Nagbibigay babala na gumagalaw o paparating ang eroplano. Example: Night flights, Landing and takeoff, Foggy or rainy weather 3. Light Sensors in GPS Ang light sensor ay isang maliit na device na nakakakita kung gaano kaliwanag o kadilim ang paligid. Sa mga GPS devices, smartphones, at car navigation systems, ginagamit ang light sensor upang awtomatikong baguhin ang liwanag ng screen. Kapag maliwanag ang paligid, lumiliwanag ang screen para madaling makita. Kapag madilim naman, humihina ang ilaw upang hindi masilaw ang gumagamit at makatipid sa battery. Example: Google Maps sa cellphone, GPS sa kotse, Smartwatches, Car navigation systems Example LighthousesMalalakas na ilaw na gumagabay sa mga barko at tumutulong maiwasan ang panganib sa dagat.Ships, ports, coastal navigation Aircraft Signal LightsMga ilaw sa eroplano na nagpapakita ng posisyon at nagbibigay babala sa ibang piloto at airport.Night flights, landing, takeoff Light Sensors in GPSSensors na awtomatikong nag-aadjust ng screen brightness para madaling makita ang GPS display.Smartphones, car GPS, smartwatches
#11 Sa medicine, ginagamit ang light waves para tumingin sa loob ng katawan—mula X-rays hanggang laser eye surgery. 1. Laser Surgeries Ang laser ay isang very strong and focused beam of light. Dahil napaka-precise nito, ginagamit ito ng mga doktor sa operasyon nang hindi kailangang gumawa ng malaking hiwa. Mas kaunti ang pagdurugo, mas mabilis ang paggaling, at mas mababa ang panganib ng impeksyon. Examples: LASIK eye surgery – para itama ang paningin. Removing kidney stones – binabasag ng laser ang maliliit na bato sa kidney. Removing tumors – ginagamit sa ilang uri ng cancer treatment. Dental procedures – paggamot sa gilagid at ngipin. 2. Endoscopy Ang endoscopy ay isang procedure kung saan gumagamit ang doktor ng mahaba at manipis na tube na may camera at ilaw (light) sa dulo. Ang ilaw ang nagpapaliwanag sa loob ng katawan upang malinaw na makita ng doktor ang mga organs sa monitor. Hindi na kailangang gumawa ng malaking hiwa para makita ang loob ng katawan. Examples: Pagsusuri ng stomach (gastroscopy), Pagsusuri ng large intestine (colonoscopy), Pagsusuri ng esophagus, Pagtukoy ng ulcers, polyps, o pagdurugo 3. X-rays and CT Scans Ang X-rays ay gumagamit ng X-ray radiation, isang uri ng electromagnetic wave na may mas mataas na energy kaysa visible light. Nakakadaan ito sa balat at kalamnan, ngunit nahaharangan ng matitigas na bahagi tulad ng buto, kaya nakikita ang larawan ng loob ng katawan. Ang CT scan (Computed Tomography) ay gumagamit ng maraming X-ray images mula sa iba't ibang anggulo. Pinagsasama ng computer ang mga ito upang makagawa ng detalyadong 3D images ng loob ng katawan. Examples: Paghanap ng broken bones, Pagsusuri ng lungs (halimbawa, pneumonia), Pag-detect ng tumors, Pag-check ng internal injuries pagkatapos ng aksidente Example Laser SurgeriesGumagamit ng concentrated light para sa precise at minimally invasive operations.LASIK eye surgery, kidney stone removal, dental treatment EndoscopyGumagamit ng ilaw at camera upang makita ang loob ng katawan nang hindi gumagawa ng malaking hiwa.Gastroscopy, colonoscopy X-rays and CT ScansGumagamit ng X-rays upang makagawa ng images ng loob ng katawan para sa diagnosis.Broken bones, lung diseases, tumors, internal injuries
#12 Light brings excitement in concerts and movies! Projectors, 3D glasses, and holograms all rely on light waves. 1. Light Shows Ang light show ay gumagamit ng iba't ibang colored lights, lasers, at special lighting effects upang gawing mas exciting at maganda ang isang event o performance. Ang mga ilaw ay maaaring kumislap, magpalit ng kulay, o gumalaw kasabay ng music. Examples: Concerts, Music festivals, Fireworks displays, Theme parks, Christmas light displays 2. Projectors Ang projector ay gumagamit ng light upang ipakita ang larawan o video sa isang malaking screen o pader. May malakas na ilaw sa loob ng projector na dumadaan sa image o video at ipinapakita ito nang mas malaki. Examples: Movie theaters, School classrooms, Business presentations, Home theaters 3. 3D/Hologram Displays Ang 3D display at hologram ay gumagamit ng light upang makalikha ng larawan na parang may lalim (depth) o tila lumulutang sa hangin. Sa 3D movies, gumagamit ng special glasses upang makita ang epekto ng depth. Sa hologram, ang image ay mukhang three-dimensional kahit wala itong tunay na solid object. Examples: 3D movies, Museum exhibits, Concert holograms, Product advertisements, Science exhibits Light ShowsGumagamit ng colored lights at lasers para gumawa ng special visual effects.Concerts, festivals, fireworks, Christmas displays ProjectorsGumagamit ng malakas na ilaw para ipakita ang images at videos sa malaking screen.Movie theaters, classrooms, presentations 3D/Hologram DisplaysGumagamit ng light upang makagawa ng images na may depth o mukhang lumulutang.3D movies, hologram concerts, museum exhibits
#13 Kabaligtaran ng light, ang sound ay mechanical wave. Kailangan nito ng medium—kaya walang tunog sa outer space! 1. Needs a Medium Ang sound ay kailangang may dadaanan para makarating sa ating tainga. Ang tawag dito ay medium. Ang medium ay maaaring: Solid (kahoy, bakal) Liquid (tubig) Gas (hangin) Kung walang medium, walang maririnig na tunog. 2. Slower than Light Ang sound ay mas mabagal maglakbay kaysa sa light. Kaya kapag may kidlat at kulog: Una mong nakikita ang kidlat (light). Pagkatapos mo maririnig ang kulog (sound). 3. Cannot Travel in Vacuum Ang vacuum ay isang lugar na walang hangin o anumang medium. Dahil kailangan ng sound ng medium, hindi ito makakalakbay sa vacuum. Example: Sa outer space, hindi maririnig ang pagsabog o sigawan dahil halos walang hangin doon. Property Simple Meaning Example Needs a MediumKailangan ng hangin, tubig, o solid para makapaglakbay ang sound.Pakikipag-usap sa kaibigan Slower than LightMas mabilis ang light kaysa sound.Makikita muna ang kidlat bago marinig ang kulog Cannot Travel in VacuumHindi makakapaglakbay ang sound kung walang medium.Walang maririnig na tunog sa outer space
#14 Mas mataas ang frequency, mas matinis ang tunog. Echo? Reflection 'yan ng sound—parang SONAR! 1. Frequency = Pitch Frequency is the number of vibrations a sound makes in one second. The pitch is how high or low the sound is. High frequency = High pitch Low frequency = Low pitch 2. Amplitude = Loudness Amplitude is the height of the sound wave. It determines how loud or how soft the sound is. Large amplitude = Loud sound Small amplitude = Soft sound Examples: A person shouting has a large amplitude. A person whispering has a small amplitude. 3. Echo = Reflection An echo happens when a sound wave hits a hard surface (like a wall or mountain) and bounces back to your ears. Ito ay katulad ng reflection of light, pero sound ang tumatalbog. Examples: Shouting in a cave Calling across a canyon Empty gymnasium or auditorium 4. Resonance = Natural Vibration Resonance happens when an object vibrates naturally because it receives vibrations that match its own natural frequency. Kapag pareho ang vibration, mas lumalakas ang pag-vibrate ng object. Examples: A guitar string vibrates when another string with the same note is played. A tuning fork makes another tuning fork of the same frequency vibrate. Example Frequency = PitchFrequency tells how high or low a sound is.Whistle (high pitch), drum (low pitch) Amplitude = LoudnessAmplitude tells how loud or soft a sound is.Shouting (loud), whispering (soft) Echo = ReflectionSound bounces back after hitting a hard surface.Shouting in a cave Resonance = Natural VibrationAn object vibrates more when it receives matching vibrations.Guitar strings, tuning forks
#15 Sa communication, halos lahat ng devices na may boses o tunog ay gumagamit ng sound waves—telepono, mic, speakers. 1. Telephones Ang telephone ay ginagamit para makapag-usap ang dalawang tao kahit magkalayo sila. Kapag nagsasalita ka, ang iyong boses (sound waves) ay kino-convert ng telepono sa electrical o digital signals. Ipinapadala ang mga signal na ito sa ibang telepono, kung saan ibinabalik ito bilang sound para marinig ng kausap. 2. Microphones Ang microphone ay isang device na kumukuha ng iyong boses at ginagawang electrical signal upang mapalakas o ma-record ang tunog. Hindi nito ginagawa ang tunog—kinukuha at kino-convert lamang nito ang sound para magamit ng speaker o recorder. Example: Singing in karaoke Classroom discussions Radio broadcasting 3. Public Address (PA) Systems Simple Explanation (Taglish) Ang Public Address (PA) System ay ginagamit upang palakasin ang boses para marinig ng maraming tao sa isang lugar. Karaniwang binubuo ito ng: Microphone – kumukuha ng boses. Amplifier – nagpapalakas ng signal. Speaker – naglalabas ng mas malakas na tunog Examples: School flag ceremonies, Church services, Concerts, Sports events Example TelephonesKino-convert ang boses sa electrical o digital signals at ibinabalik ito bilang sound sa kabilang telepono.Mobile phones, landlines, video calls MicrophonesKinukuha ang boses at kino-convert ito sa electrical signal para ma-record o mapalakas.Karaoke, podcasts, classrooms Public Address SystemsPinapalakas ang boses gamit ang microphone, amplifier, at speakers.School assemblies, churches, concerts
#16 Tunog ang gamit sa sonar (sound navigation ranging)—nagre-reflect ito sa seafloor para malaman ng barko ang lalim o kung may hadlang. 1. SONAR in Ships SONAR stands for Sound Navigation and Ranging. Ang SONAR ay nagpapadala ng sound waves sa ilalim ng tubig. Kapag tumama ang sound sa isang bagay (tulad ng isda, bato, o seabed), bumabalik ito bilang echo. Sa pamamagitan ng echo, nalalaman ng barko kung gaano kalayo o gaanong kalalim ang isang bagay. Examples: Measuring the depth of the ocean, Finding schools of fish, Detecting underwater rocks or obstacles 2. Submarine Echolocation Ang submarine ay gumagamit din ng sound waves upang makita ang mga bagay sa ilalim ng dagat. Dahil hindi nakakapasok ang liwanag nang malalim sa tubig, mas epektibong gamitin ang sound para matukoy ang lokasyon ng ibang submarines, barko, o mga hadlang sa ilalim ng dagat. Examples: Detecting other submarines, Avoiding underwater obstacles, Safe underwater navigation 3. Aircraft Sound Monitors Ang aircraft sound monitors ay mga devices na nakikinig at sumusukat sa tunog ng eroplano. Ginagamit ang mga ito upang: Subaybayan ang ingay ng aircraft., Tiyaking ligtas ang operasyon ng makina., Suriin kung sumusunod ang eroplano sa noise regulations malapit sa mga airport., Hindi ito ang pangunahing gamit ng eroplano sa pag-navigate, ngunit nakakatulong ito sa safe operation at sa pag-monitor ng kondisyon ng aircraft. Example SONAR in ShipsGumagamit ng sound waves at echo upang sukatin ang lalim ng dagat at makita ang mga bagay sa ilalim ng tubig.Finding fish, measuring ocean depth Submarine EcholocationGumagamit ng echo upang matukoy ang lokasyon ng mga bagay sa ilalim ng dagat.Detecting submarines, avoiding obstacles Aircraft Sound MonitorsNakikinig at sumusukat sa tunog ng aircraft para sa safety at noise monitoring.Engine monitoring, airport noise checks
#17 Ultrasound—isang non-invasive na paraan para makita ang baby sa tiyan. Tunog ang gamit dito, hindi light! Lithotripsy – breaking (by shock waves with a surgical instrument) of calculus in the urinary system into pieces small enough to be voided or washed out 1. Ultrasound Imaging Ang ultrasound ay gumagamit ng high-frequency sound waves (sound na hindi naririnig ng tao) upang makagawa ng larawan ng loob ng katawan. Kapag tumama ang sound waves sa mga organs o baby sa sinapupunan, bumabalik ang mga ito bilang echo. Ginagamit ng computer ang mga echo upang makagawa ng image. Examples: Checking a baby during pregnancy, Examining the heart, Looking at the kidneys, liver, or other organs 2. Hearing Aids Ang hearing aid ay isang maliit na electronic device na tumutulong sa mga taong mahina ang pandinig. Kinukuha nito ang mga tunog sa paligid, pinapalakas ang mga ito, at ipinapadala sa tainga upang mas malinaw na marinig ng gumagamit. Examples: Elderly people with hearing loss, People born with hearing difficulties, Patients recovering from certain ear conditions 3. Lithotripsy Ang lithotripsy ay isang medical treatment na gumagamit ng high-energy sound waves upang durugin ang kidney stones o gallstones sa maliliit na piraso. Kapag nadurog na ang mga bato, mas madali na itong mailabas ng katawan sa pamamagitan ng ihi (para sa kidney stones). Sa maraming kaso, hindi na kailangan ng malaking operasyon. Examples: Treating kidney stones, Treating some urinary tract stones Example Ultrasound ImagingGumagamit ng high-frequency sound waves upang makagawa ng larawan ng loob ng katawan.Pregnancy check-up, heart and organ examination Hearing AidsPinapalakas ang tunog upang mas malinaw na marinig ng taong may hearing loss.Hearing assistance for children and adults LithotripsyGumagamit ng high-energy sound waves upang durugin ang kidney stones nang hindi kailangan ng malaking operasyon.Kidney stone treatment
#18 Bawat sinehan, concert, at video game ay mas pinapaganda ng tamang tunog—mula sa surround sound hanggang bass effects! 1. Music Acoustics Music acoustics is the study of how sound is produced, travels, and is heard in music. It helps musicians and engineers make music sound clear, balanced, and pleasant. Examples: Concert halls designed for better sound, Recording studios, Musical instruments like guitars, pianos, and drums 2. Surround Sound Systems Ang surround sound system ay gumagamit ng maraming speakers na nakapalibot sa mga tagapakinig. Dahil dito, parang nanggagaling ang tunog sa iba't ibang direksyon, kaya mas realistic ang pakiramdam. Examples: Movie theaters, Home theaters, Concert venues 3. Game Effects Ang game sound effects ay mga tunog na ginagamit sa video games upang gawing mas exciting at mas realistic ang paglalaro. Tinutulungan din nito ang player na malaman kung ano ang nangyayari sa laro. Examples: Footsteps of a character, Explosion sounds, Car engine sounds in racing games, Background music Example Music AcousticsPinag-aaralan kung paano gagawing malinaw at maganda ang tunog ng musika.Concerts, recording studios, musical instruments Surround Sound SystemsGumagamit ng maraming speakers upang magbigay ng realistic na tunog mula sa iba't ibang direksyon.Movie theaters, home theaters Game EffectsGumagamit ng sound effects at music upang gawing mas exciting at realistic ang video games.Footsteps, explosions, background music
#19 Ang light ay ‘kinukulong’ sa loob ng fiber dahil sa total internal reflection—kaya mabilis at efficient ang data transfer. What are the different properties of light mentioned in the video? Why are fiber optics cables preferred to be used in modern communication? How does fiber optics work?
#20 Tumatama ang sound waves sa loob ng katawan, bumabalik, at ginagawang larawan ng computer—safe ito, walang radiation! What is ultrasound? 2. How is an ultrasound image formed? 3. How is ultrasound used today? 4. What are the advantages of ultrasound? 1. What is Ultrasound? Ultrasound is a type of sound wave with a very high frequency. Its frequency is higher than 20,000 Hz, so humans cannot hear it. Doctors use ultrasound because it is safe and can create images of the inside of the body without surgery. Examples: Checking a baby during pregnancy, Examining the heart, Looking at the kidneys, liver, and other organs 2. How is an Ultrasound Image Formed? An ultrasound machine uses a device called a transducer. Here's how it works: 1. The transducer sends high-frequency sound waves into the body. 2. The sound waves hit organs or tissues inside the body. 3. The sound waves bounce back as echoes. 4. The ultrasound machine receives the echoes. 5. A computer changes the echoes into an image that appears on the screen. Example: During pregnancy, the sound waves bounce off the baby, and the computer creates a picture of the baby on the monitor. 3. How is Ultrasound Used Today? Today, ultrasound is widely used in hospitals and clinics to help doctors diagnose and monitor different medical conditions. Common Uses: 👶 Pregnancy check-ups – to monitor the baby's growth and heartbeat. ❤️ Heart examination (Echocardiogram) – to check how the heart is working. 🩺 Checking internal organs – such as the liver, kidneys, gallbladder, and bladder. 🩸 Blood flow examination (Doppler ultrasound) – to see how blood moves through the blood vessels. 💉 Guiding medical procedures – such as needle biopsies and injections. 4. What are the Advantages of Ultrasound? Ultrasound has many advantages, which is why it is commonly used by doctors. Advantages: ✅ Safe - It uses sound waves, not harmful radiation like X-rays. ✅ Painless - No surgery or large cuts are needed. ✅ Fast - The results can be seen immediately on the monitor. ✅ Real-time Images - Doctors can watch moving organs or even the baby moving during the examination. ✅ Non-invasive - The machine can examine the inside of the body without opening it. Question Simple Answer 1. What is ultrasound?Ultrasound is a high-frequency sound wave that humans cannot hear. It is used to create images inside the body. 2. How is an ultrasound image formed?A transducer sends sound waves into the body. The echoes bounce back and a computer turns them into an image. 3. How is ultrasound used today?It is used to check babies during pregnancy, examine the heart and organs, monitor blood flow, and guide some medical procedures. 4. What are the advantages of ultrasound?It is safe, painless, fast, non-invasive, and provides real-time images of the inside of the body.
#21 Ang SONAR ay parang tenga ng barko—pinapakinggan kung gaano katagal bumalik ang tunog para sukatin ang lalim. What does the word SONAR stand for? 2. What property of sound wave is involved in sonar? 3. Illustrate how sonar works in marine exploration. 1. What does the word SONAR stand for? SONAR stands for Sound Navigation and Ranging. It is a technology that uses sound waves to detect, locate, and measure the distance of objects underwater. 2. What property of sound wave is involved in SONAR? The property of sound used in SONAR is echo (reflection of sound). When sound waves hit an object, they bounce back as an echo. The echo helps determine the object's location and distance. 3. Illustrate how SONAR works in marine exploration. A ship sends sound waves into the water. 1. The sound waves travel until they hit an object, such as a fish, submarine, or the seafloor. 2. The sound waves bounce back as echoes. 3. The ship receives the echoes and calculates the distance and location of the object. Example: A fishing boat uses SONAR to find schools of fish, while research ships use it to map the ocean floor. Simple Analogy: Para kang sumigaw sa kuweba. Kapag bumalik ang echo, malalaman mong may bagay o pader sa unahan. Ganito rin ang ginagawa ng SONAR sa ilalim ng dagat.

Comprehensive Exploration of Light and Sound Properties and Their Applications

Comprehensive Exploration of Light and Sound Properties and Their Applications

Editor's Notes

More Related Content

Similar to Comprehensive Exploration of Light and Sound Properties and Their Applications

More from egiptogilbert3

Recently uploaded

Comprehensive Exploration of Light and Sound Properties and Their Applications

Editor's Notes