physical science classroom

1. Physical Science Class
Today’s Topics:
Waves and Wave Properties

2. TToo bbeeggiinn ccllaassss....
OOppeenn yyoouurr SScciieennccee NNootteebbooookkss
• What do you think of when you hear the
word wave?
• Write a brief description in your science
notebook of what you think a wave is

3. How can we describe a wave?
A Wave is disturbance that transfers
energy from 1 place to another

4. Let’s Review Key Terms
Medium: the matter a wave passes through
Amplitude (height): the distance a medium
rises or falls from its resting point
Wavelength: the distance from any 1 point
on a wave to an identical point on the next
weave. This measures the length of 1 cycle

5. Image source:
http://www.physicsclassroom.com/class/waves/Less
on-1/Categories-of-Waves

6. LLoonnggiittuuddiinnaall vvss.. TTrraannssvveerrssee
WWaavveess
LLeett’’ss vviieeww aa ssiimmuullaattiioonn
hhttttpp:://wwwwww..aanniimmaatteeddsscciieennccee..ccoo..uukk/bblloogg/wwpp
--ccoonntteenntt/uuppllooaaddss/ffooccuuss__wwaavveess/ttll--
wwaavvee..hhttmmll

7. Surface Waves
AA ccoommbbiinnaattiioonn ooff
ttrraannssvveerrssee aanndd lloonnggiittuuddiinnaall..
An example is an Ocean Wave: As a wave
travels through the medium (water), the
particles of that medium travel in clockwise
circles.
As a wave heads into shore, the top of the
wave is free but the bottom of the wave
becomes constricted, causing the wave´s crest
to build. Eventually the water is unable to
support the wave and it breaks

8. Let’s watch aanndd sseeee hhooww aa wwaavvee’’ss
ccrreesstt bbuuiillddss……
hhttttpp::////nneewwss..bbbbcc..ccoo..uukk//22//hhii//44113366228899..ssttmm
TThhiiss sshhoowwss aa ssiimmuullaattiioonn oonn hhooww aa ttssuunnaammii iiss
ffoorrmmeedd
You Tube has many videos of the 2004 Tsunami
waves and the destruction

9. PPaarrttss ooff aa WWaavvee
TThhee wwaavveelleennggtthh,, λλ,, ooff aa wwaavvee iiss tthhee
ddiissttaannccee ffrroomm aannyy ppooiinntt oonn oonnee wwaavvee ttoo
tthhee ssaammee ppooiinntt oonn tthhee nneexxtt wwaavvee aalloonngg
Image courtesy of:
http://www.bbc.co.uk/bitesize/standard/physics/telecommunications/communication
_using_waves/revision/5/

10. PPaarrttss ooff aa WWaavvee
TThhee aammpplliittuuddee,, aa,, ooff aa wwaavvee iiss tthhee
ddiissttaannccee ffrroomm tthhee cceennttrree lliinnee ((oorr tthhee ssttiillll
ppoossiittiioonn)) ttoo tthhee ttoopp ooff aa ccrreesstt oorr ttoo tthhee
bboottttoomm ooff aa ttrroouugghh.. MMeeaassuurreedd iinn mmeetteerrss

11. PPaarrttss ooff aa WWaavvee
TThhee ffrreeqquueennccyy,, ff,, ooff aa wwaavvee iiss tthhee nnuummbbeerr
ooff wwaavveess ppaassssiinngg aa ppooiinntt iinn aa cceerrttaaiinn ttiimmee..
WWee nnoorrmmaallllyy uussee aa ttiimmee ooff oonnee sseeccoonndd,, ssoo
tthhiiss ggiivveess ffrreeqquueennccyy tthhee uunniitt hheerrttzz ((HHzz)),,
ssiinnccee oonnee hheerrttzz iiss eeqquuaall ttoo oonnee wwaavvee ppeerr
sseeccoonndd

12. VViiddeeoo -- PPaarrttss ooff aa WWaavvee
hhttttpp::////ssaaffeesshhaarree..ttvv//ww//SSkkYYbbVVffMMRRppvv

13. Let’s Play!! Waves Review and Practice

14. $1,000,000
$500,000
$100,000
$50,000
$10,000
$5000
$1000
$500
$200
$100
Question 1?
A wave is a disturbance that transfers
______ from 1 place to another
Is this your
Final Answer?
Yes No
energy
light
matter
water

15. $1,000,000
$500,000
$100,000
$50,000
$10,000
$5000
$1000
$500
$200
$100
Question 2?
Name the 3 types of waves
Is this your
Final Answer?
Yes No
Ocean, land, water
Compression, longitudinal,
surface
Transverse, surface, compression
Longitudinal, transverse,
surface

16. $1,000,000
$500,000
$100,000
$50,000
$10,000
$5000
$1000
$500
$200
$100
Question 3?
How is amplitude measured in units?
Is this your
Final Answer?
Yes No
feet
yards
meters
Meters/seconds

17. $1,000,000
$500,000
$100,000
$50,000
$10,000
$5000
$1000
$500
$200
$100
Question 4?
The distance crest to crest is:
Is this your
Final Answer?
Yes No
amplitude
wavelength
frequency
meters

18. $1,000,000
$500,000
$100,000
$50,000
$10,000
$5000
$1000
$500
$200
$100
Question 5?
1 hertz is equal to 1 wave per _________
Is this your
Final Answer?
Yes No
inches
second
hour
minute

19. $1,000,000
$500,000
$100,000
$50,000
$10,000
$5000
$1000
$500
$200
$100
Question 6?
Ocean waves are _______
Is this your
Final Answer?
Yes No
Compression waves
Longitudinal waves
Transverse waves
Surface waves

20. $1,000,000
$500,000
$100,000
$50,000
$10,000
$5000
$1000
$500
$200
$100
Question 7?
Transverse waves move:
Is this your
Final Answer?
Yes No
Up and down
circular
$10,000
Side to side
longitudinal

21. $1,000,000
$500,000
$100,000
$50,000
$10,000
$5000
$1000
$500
$200
$100
Question 8?
Frequency of a wave is the # of
waves passing a point in:
Is this your
Final Answer?
Yes No
1 minute
A certain time
1 hour
Meters per second

22. $1,000,000
$500,000
$100,000
$50,000
$10,000
$5000
$1000
$500
$200
$100
Question 9?
Hz stands for
Is this your
Final Answer?
Yes No
height
Hertz/second
hertz
horsepower

23. $1,000,000
$500,000
$100,000
$50,000
$10,000
$5000
$1000
$500
$200
$100
Question 10?
The matter a wave passes through is:
Is this your
Final Answer?
Yes No
matter
soil
air
medium
50,000

24. $1,000,000
$500,000
$100,000
$50,000
$10,000
$5000
$1000
$500
$200
$100
Question 11?
Is this your
Final Answer?
Yes No
Wrong Answer
Wrong Answer
$Correct Answer
Wrong Answer