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Unit 8 Waves Test Review

Total questions: 50

Worksheet time: 41mins

Name
Class
Date
1.

What property of this wave is represented by the letter "A"

a)

amplitude

b)

crest

c)

trough

d)

wavelength

2.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
3.
The highest point on a wave is:
a)
the crest
b)
the trough
c)
the top
d)
the coast 
4.
The lowest point on a wave is the:
a)
Amplitude
b)
Crest
c)
Trough
d)
Wavelength
5.
The number of wavelengths that pass a point each per second is:
a)
frequency
b)
period
c)
longitudinal 
d)
transverse wave 
6.
The type of waves that require medium to pass:
a)
Mechanical Waves
b)
Electromagnetic Waves
7.
When the frequency of a wave increases, what happens to the wavelength?
a)
The wavelength is not directly affected by the frequency of a wave.
b)
The wavelength increases.
c)
The wavelength decreases.
d)
More specific information is needed to form a conclusion about the wavelength.
8.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
9.
When a wave strikes and object and bounces off. (example echo)
a)
medium
b)
refraction
c)
reflection
d)
interference
10.
The ___________________ of waves can change when the waves move from one medium to another.
a)
altitude
b)
amplitude
c)
speed
d)
compression
11.
What best describes the doppler effect?
a)
An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
b)
When sound changes pitch
c)
When light changes color
d)
An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.
12.

When a car is coming towards you, the honk is getting_________ in pitch.

a)

higher

b)

lower

13.
The bending of a wave as it travels from one medium to another and as a result changes speed is called
a)
reflection
b)
refraction
c)
diffraction
d)
interference
14.

The bending of a wave around the edge of a barrier or an opening is called

a)
reflection
b)
diffraction 
c)
interference
d)
refraction
15.
When a wave moves parallel to the direction that the wave travels, it is a
a)
longitudinal
b)
transverse
16.
The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-
a)
absorbed
b)
stopped
c)
reflected
d)
refracted
17.
A student placed a pencil in a cup of water.  The pencil appears broken because light-
a)
always travels in a straight line
b)
bends when it passes through water
c)
makes the water in the glass evaporate
d)
reflects the pencil on the water's surface
18.
We see a green shamrock as being green because:
a)
All of the colors are absorbed except for green which is reflected
b)
All of the colors are being reflected except for green.
c)
It is green - what a silly question!
19.
Does this shirt absorb or reflect all colors?
a)
Absorb
b)
Reflect
20.
A shirt reflects all light, what color is the shirt
a)
Black
b)
Blue
c)
Magenta 
d)
White
21.
Cell phones use_____________waves.
a)
Microwaves
b)
Gamma
c)
XRays
d)

Ultraviolet

22.
Infrared waves are used in__________________.
a)
Bath tubs
b)
Microwaves
c)
Remote Controls
d)
Tanning
23.
Cancer can be treated with_______________waves.
a)
Penicillin
b)
Radio
c)
Infrared
d)
Gamma
24.

EM waves________________travel through empty space.

a)
Never
b)
Cannot
c)
Can
d)
Wish they could
25.
The acronym (letters) used to remember visible light is____________
a)
KTPERRY
b)
ROYGBIV
c)
DOGPOUND
d)
ROMERO
26.
_____________________light is the only type of EM wave detected by the human eye.
a)
Red
b)
Gamma
c)
Microwave
d)
Visible
27.
EM waves _______ travel the same speed in a vacuum. 
a)
never
b)
sometimes
c)
always
d)
can
28.
Wavelengths on the right side of the EM spectrum are ______________.
a)
short
b)
long
c)
average
29.
_____ have the longest wavelengths and lowest frequencies of all electromagnetic waves.
a)
microwaves
b)
radio waves
c)
gamma rays
d)
ultraviolet
30.

Which of the following does sound travel through the slowest?

a)
solid
b)
liquid
c)
gas
31.
which material does sound travel the fastest?
a)
solid 
b)
liquid 
c)
gases
32.
Sound is caused by? 
a)
force
b)
vibrations
c)
instruments
d)
medium
33.
This is what you get when sound waves are reflected, or bounce back, off of a hard surface.
a)
Amplitude
b)
Pitch
c)
Volume
d)
Echo
34.
Why is sound able to travel faster through a solid than a gas?
a)
Gas molecules are packed tightly.
b)
Sound does not travel faster through a solid than a gas.
c)
Solid molecules are packed tightly.
d)
Gas molecules move slowly.
35.

The units for frequency are measured in _____________.

a)

hertz

b)

seconds

c)

m/s

d)

decibles

36.

In general, the more energy a wave has the greater the amplitude.

a)

True

b)

False

37.
Sounds that have a high pitch also have a high
a)
frequency
b)
rhythm
c)
volume
d)
crest
38.
As wavelength increases, its
a)
frequency decreases
b)
frequency stays the same
c)
frequency increases
d)
volume increases
39.
Light changes speed as it travels through various mediums.  What are examples of mediums that light can travel through.
a)
snow and ice
b)
air and water
c)
cloth and wood
d)
glass and wood
40.
According to the Law of reflection, a light ray striking a mirror
a)
continues moving through the mirror in the same direction
b)
moves into the mirror at a slightly different angle
c)
bounces off the mirror toward the direction it came from
d)
bounces off the mirror at the same angle it hits.
41.
How is a rainbow formed?
a)
A poptart cat flies across the sky
b)
A leprechaun places a pot of gold at the bottom of a pond
c)
Light refracts off the water droplets to create a rainbow of color
d)
Rainbows are a myth
42.

Which color of visible light has the shortest wavelength?

a)

red

b)

green

c)

violet

d)

yellow

43.

In association with sound, what is a medium?

a)

The sound wave itself

b)

The material through which sound travels

c)

The vibration of particles

d)

The pitch of the sound wave

44.

Which of the following lists rate the materials in order from the best sound carrier (fastest) to the worst sound carrier (slowest)?

a)

Gas, liquid, solid

b)

Solid, gas, liquid

c)

Liquid, solid, gas

d)

Solid, liquid, gas

45.
Sound does not travel in space because
a)
Space is too far away.
b)
There is no matter in space.
c)
Space is the final frontier
d)
Space has planets.
46.

When the sun gets higher in the sky, shadows get ______.

a)

longer

b)

gone

c)

shorter

d)

darker

47.

When the sun gets lower in the sky, shadows get______.

a)

longer

b)

gone

c)

shorter

d)

darker

48.

The sun appears to __________.

a)

rise in the east, set in the west

b)

rise in the west, set in the east

49.

Where will the tree's shadow be?

a)

A

b)

B

c)

C

50.

Whatever direction the sun is in the sky, the shadows will point in the ________________ direction.

a)

same

b)

opposite

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