Download to read offline
Uploaded byRidhima Wahi
Sound physics
The document explains that sound is a form of energy produced by vibrating objects and plays a crucial role in communication and perception of the environment. It details how sound waves are created, transmitted, and perceived by the human ear, discussing characteristics like loudness, pitch, and quality. Additionally, it highlights the importance of controlling noise pollution through various measures to protect the community.
More Related Content
Sound physics
- 1.
- 2. WHAT IS SOUNDEXACTLY? SOUND IS A FORM OF ENERGY, WHICH IS ALWAYS PRODUCED BY VIBRATING OBJECTS. Vibration is a kind of rapid to and fro motion of an object from its central position. Sound is the sensation of hearing . IS SOUNDIMPORTANT? Yes, sound does play a very crucial role in our lives. For example, it helps us to communicate. Communication is the easiest way through which we deliver informationand messages. Apart from this, sound also helps us to listen to our favorite songs! Animals are able to hear the eventsgoingaround them, whichhelps them to predict danger. PPT BY @RIDHIMAWAHI
- 3. VIBRATION AND WAVE thattransfers energy from one particle to another. The vibrations, due to which sound is produced cause disturbance in the medium and as a result, energy is ---- (??) • Note- PPT BY @RIDHIMAWAHI
- 4. A LITTLE ABOUTINSTRUMENTS TOO… INSTRUMENTS VIBRATING PARTS VEENA STRETCHED STRINGS TABLA STRETCHED MEMBRANE FLUTE AIR COLUMN MANJIRA METALLIC PLATES JALTARANG GLASS HARMONIUM AIR COLUMN PPT BY @RIDHIMAWAHI
- 5.
- 6. HOW DO WEPRODUCE SOUND? DO WE VIBRATE? PPT BY @RIDHIMAWAHI
- 7.
- 8.
- 9.
- 10. HOW DO WE HEARTHINGS AROUND US? The and these sound waves . From there, they reach the and the sound waves start to vibrate the eardrum. The eardrum In turn vibrates the 3 tiny bones. These bones . In the cochlea, these sound waves or vibrations get converted to . These impulses travel to the brain via the auditory nerve where it is interpreted as sound. PPT BY @RIDHIMAWAHI
- 11. UNDERSTANDING AMPLITUDE maximum displacement of avibrating object PPT BY @RIDHIMAWAHI
- 12. UNDERSTANDING FREQUENCY AND TIMEPERIOD PPT BY @RIDHIMAWAHI
- 13. Characteristics of sound Loudness Pitch quality 1.loudness- the loudness of sound helps us to distinguish between loud and feeble sounds. The loudness of the sound depends on the amplitude. If the amplitude is high, then the sound of the sound would also be loud accordingly. 2. Pitch-the pitch of a sound helps us to distinguish between shrill and deep (lower) sounds. The pitch of a sound depends on the frequency ( no. of oscillations or vibrations that the body makes per second.) higher the frequency, higher the pitch. 3. Quality- The quality of the sound helps us to distinguish between different sound producing objects, even if they are of the same pitch and loudness. PPT BY @RIDHIMAWAHI
- 14. AUDIBLE AND INAUDIBLESOUNDS AUDIBLE INAUDIBLE PPT BY @RIDHIMAWAHI
- 15.
- 16. WECANALSOCONTROL! •Factories and otherindustries should be set up at a distance from residential areas. • Silencing devices should be incorporated into heavy vehicles such as aircraft, industrial •equipment, machinery and other home appliances. • We should always play television, radio and other music systems at a low sound so that •it does not harm the neighbourhood. • Use of horns should be minimized especially near public places such as hospitals, •religious places and schools. • Sound proofing systems should be installed in industries, party halls and other buildings •that produce a high amount of unwanted sounds. • Trees should be planted in huge numbers as they can absorb unwanted noise from the •environment. • People should be made aware of noise pollution and its adverse effects, so that they can •take an active involvement in preventing it. PPT BY @RIDHIMAWAHI
- 17.