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Unit 3 Waves Test Review

Total questions: 52

Worksheet time: 26mins

Name
Class
Date
1.
The material through which a wave travels is the
a)
vacuum
b)
medium
c)
spectrum
d)
rays
2.
The distance from one crest of a wave to the next consecutive crest is the
a)
amplitude
b)
wavelength
c)
trough
d)
frequency
3.
Mechanical waves
a)
travel in a vacuum
b)
travel at the speed of light
c)
require a medium
d)
reflect light
4.
Loudness is measured in
a)
hertz
b)
m/sec
c)
frequency
d)
decibels
5.
The number of waves that pass a point in one second is called its
a)
frequency
b)
amplitude
c)
wavelength
d)
speed
6.
Space in which there is no matter is
a)
electromagnetic
b)
a vacuum
c)
a medium
d)
visible
7.
For wave refraction to take place, a wave must enter a new
a)
spectrum
b)
energy level
c)
frequency
d)
medium
8.
Which of the following is an example of a longitudinal wave?
a)
transverse
b)
sound
c)
light
d)
electromagnetic
9.
When sound waves are reflected, they
a)
diffract
b)
make an echo
c)
interfere
d)
disappear
10.
A wave bouncing off a hard surface is an example of 
a)
reflection
b)
refraction
c)
diffraction
d)
interference
11.
The amplitude of a sound wave determines its
a)
loudness
b)
frequency
c)
pitch
d)
wavelength
12.
The crest of a wave is
a)
the top of a wave
b)
the bottom of a wave
c)
its amplitude
d)
a trough
13.
The frequency of a sound wave determines its
a)
loudness
b)
pitch
c)
amplitude
d)
interference
14.
The direction in which a transverse wave travels is 
a)
parallel to the disturbance
b)
perpendicular to the disturbance
c)
north
d)
south
15.
When the frequency of a wave increases, its wavelength
a)
increases
b)
decreases
c)
remains constant
d)
disappears
16.
The speed of waves can be calculated by multiplying the frequency by the
a)
wavelength
b)
amplitude
c)
velocity
d)
period
17.
Waves in which the vibration from the disturbance travels parallel to the direction of the wave are
a)
transverse
b)
longitudinal
c)
light waves
d)
mechanical
18.
Sound waves travel faster in 
a)
a vacuum
b)
space
c)
colder temperatures
d)
warmer temperatures
19.
Sound waves travel faster through 
a)
solids
b)
liquids
c)
gases
d)
joules
20.
The frequency of waves is measured in 
a)
decibels
b)
Hertz
c)
amplitudes
d)
joules
21.
A single disturbance that moves from point to point through a medium is called a
a)
spectrum
b)
field
c)
mechanical wave
d)
transverse wave
22.
The bending of waves around obstacles and openings is called
a)
reflection
b)
refraction
c)
diffraction
d)
interference
23.
If a wave measures 20 meters from its crest to its trough, what is its amplitude?
a)
5 meters
b)
10 meters
c)
15 meters
d)
20 meters
24.
What do waves carry from one place to another?
a)
matter
b)
water
c)
solids
d)
energy
25.
Sound frequencies above 20,000 Hz (the limit of human hearing) are called
a)
infrasonic
b)
ultrasonic
c)
echolocation
d)
visible
26.
An electromagnetic wave is a disturbance in a 
a)
vacuum
b)
field
c)
medium
d)
material
27.
Most of the EM spectrum is ____________ to humans.
a)
visible
b)
invisible
c)
harmful
d)
unreal
28.
These EM waves have the highest frequency:
a)
radio waves
b)
microwaves
c)
x-rays
d)
gamma rays
29.
The energy transmitted in the form of electromagnetic waves is
a)
transverse
b)
longitudinal
c)
infrared
d)
radiation
30.
This type of EM wave is often associated with heat:
a)
microwaves
b)
infrared
c)
visible light
d)
gamma rays
31.
The smallest part of the 
EM spectrum is made up of this type of wave:
a)
radio waves
b)
microwaves
c)
visible light
d)
gamma rays
32.
These EM waves pass through soft tissue but are absorbed by bone:
a)
microwaves
b)
ultraviolet waves
c)
x-rays
d)
gamma rays
33.
When white light passes through a prism
a)
it disappears
b)
it absorbs all colors
c)
it's separated into 7 colors
d)
it turns blue
34.

Which of the following produces the most EM waves on Earth?

a)

artificial light

b)

the International Space Station

c)

the energy of distant stars (including the sun)

d)

a vacuum

35.
In the visible light spectrum, _____________ objects reflect all colors.
a)
shiny
b)
white
c)
black
d)
refracted
36.
In a vacuum, the speed of EM waves
a)
depends on the source of the waves
b)
decreases
c)
increases
d)
remains constant
37.

The speed of _____________ is about 300,000 kilometers per second (186,000 miles per second).

a)

sound

b)

light

c)

all waves

d)

energy

38.
When microwaves encounter water, they
a)
convert EM energy into heat
b)
don't interact
c)
are reflected
d)
are refracted
39.
This part of the EM spectrum is associated with having the lowest frequency:
a)
radio waves
b)
visible light
c)
microwaves
d)
gamma rays
40.
Waves from the sun in this part of the EM spectrum can burn your skin:
a)
radio waves
b)
infrared
c)
ultraviolet
d)
x-rays
41.
A banana looks yellow because 
a)
it reflects yellow light
b)
the potassium is yellow
c)
it absorbs yellow light
d)
it reflects all light
42.
This section of the EM spectrum has the shortest wavelengths:
a)
radio waves
b)
microwaves
c)
visible light
d)
gamma rays
43.
EM waves have both __________ and ________ properties.
a)
energetic; mechanical
b)
electrical; mechanical
c)
electrical; magnetic
d)
energetic; magnetic
44.
The electromagnetic spectrum is
a)
the range of all types of EM radiation
b)
produced by sound waves
c)
completely invisible to humans
d)
a type of medium
45.
As you increase the amplitude of a wave, you also increase its
a)
wavelength
b)
frequency
c)
energy
d)
speed
46.

Which BEST describes what happens when light reaches opaque materials?

a)

All of the light passes through.

b)

Some light passes through and some reflects in different directions.

c)

None of the light passes through.

d)

The light is mostly absorbed and some bounces off in many directions.

47.

When light waves pass through the lenses of a pair of glasses, the light waves ______________ .

a)

conduct

b)

diffract

c)

reflect

d)

refract

48.

The law of reflection states that light is reflected off a surface at the same angle that light hits the surface. The arrow on the left that shows the direction of light is the

a)

incident ray

b)

reflected ray

c)

refracted ray

d)

coincident ray

49.

When light encounters a barrier with slits cut it in it, the light will bend through the slits creating a pattern like that seen in the image. What behavior of light is responsible for this pattern?

a)

diffraction

b)

rarefaction

c)

reflection

d)

refraction

50.

Bella notices when she looks through a magnifying glass objects appear to be larger. A magnifying glass is used to magnify, or makes objects look larger. It uses a special lens mounted in a frame and usually has a handle. What type of lens does a magnifying glass have?

a)

concave

b)

convex

c)

prism

d)

reflecting

51.

What happens when light rays pass through a concave lens?

a)

Parallel light rays pass through the lens and are refracted inward.

b)

Parallel light rays pass through the lens and are refracted outward.

c)

Perpendicular light rays pass through the lens and are refracted inward.

d)

Perpendicular light rays pass through the lens are are refracted outward.

52.

Jonathan has six strings that are the same thickness and are all the same material. He cuts the strings to different lengths and pulls so that they all have the same tightness. Which string will have the highest pitch when he plucks it with his finger?

a)

They will all have the same pitch.

b)

Nothing different will happen.

c)

The shortest string will have the highest pitch.

d)

The longest string will have the highest pitch.

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