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8th Physical Science GMAS Review - WAVES

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.
Student 1 claims that energy can only be transferred by particles inside a medium. Student 2 does not agree with Student 1.
Which statement should Student 2 use as evidence that Student 1 is INCORRECT?
a)
Light energy can travel without a medium.
b)
Sound energy can travel without a medium.
c)
All types of energy can travel without a medium.
d)
Mechanical energy can travel without a medium.
2.
Mario shined a flashlight on a mirror in his dark bedroom.  He observes that a spot of light is formed on a wall opposite the mirror.
Which of the following can Mario use to describe this situation.
a)
absorption
b)
diffraction
c)
refraction
d)
reflection
3.
As children get older, his/her voice changes from higher pitch to lower pitch.  Which of the following BEST explains why this happens?
a)
Vocal cords get longer and vibrate with a higher frequency.
b)
Vocal cords get longer and vibrate with a lower frequency.
c)
Vocal cords get shorter and vibrate with higher frequency.
d)
Vocal cords get shorter and vibrate with a lower frequency.
4.
What type of wave has the most energy?
a)
a low-frequency wave
b)
a high-frequency wave
c)
a wave length with Hertz
d)
a wave with a magnetic field
5.
What kind of waves do not require a medium to transport the wave's energy and travel through a vacuum instead.
a)
mechanical
b)
sound
c)
electromagnetic
d)
seismic
6.
What characteristic do all waves share?
a)
All waves move matter.
b)
All waves transfer energy.
c)
All waves can move through a vacuum.
d)
All waves travel at 3.0 x 108 m/s.
7.
Loosening the strings of a guitar will cause the pitch to become
a)
softer
b)
louder
c)
lower
d)
higher
8.
While swimming underwater, Jonathan heard the voices of his friends outside the pool, but he could not understand the words they were speaking.  Which of the following explains this?
a)
Sound waves increase in frequency when they strike water.
b)
Sound waves change speed when moving from air to water.
c)
Sound waves are absorbed by water molecules.
d)
Sound waves cannot pass through water and are reflected.
9.
Coach Campbell told his students that sound waves are longitudinal waves.  Through which of the following will sound waves NOT travel.
a)
a balloon
b)
a lake
c)
a vacuum
d)
a door
10.
The human eye could not see the green color of a leaf without
a)
red light being reflected from the leaf's surface.
b)
red light being absorbed by the leaf's surface.
c)
green light being reflected by the leaf's surface.
d)
green light being refracted by the leaf's surface.
11.
A red apple appears red because it 
a)
reflects all colors of light except red.
b)
refracts all colors of light except red.
c)
absorbs all colors of light except red.
d)
is transparent to all colors of light except red.
12.
What property of electromagnetic waves makes it possible to use these waves to transmit information between a space shuttle and NASA mission control centers on the ground?
a)
Electromagnetic waves have very low velocity.
b)
Electromagnetic waves are transverse waves.
c)
Electromagnetic waves are all visible to human eyes.
d)
Electromagnetic waves can travel through a vacuum.
13.
a)
The mirror image of the duck in the water is caused by black light.
b)
The mirror image of the duck in the water is a result of refracted light.
c)
The mirror image of the duck in the water is the result of reflected light.
d)
The mirror image of the duck in the water is caused by absorbed light.
14.
What happens to the path of a light ray as it passes from air into water at an angle?
a)
Its path bends.
b)
Its path widens.
c)
Its path becomes shorter.
d)
Its path continues in a straight line.
15.
What happens as the frequency of a sound wave increases?
a)
The volume becomes louder.
b)
The volume becomes softer.
c)
The pitch becomes higher.
d)
The pitch becomes lower.
16.
A person will see a flash of lightning before they hear the thunder that goes with it because
a)
the eye is quicker than the ear.
b)
the thunder occurs much later than the lightning.
c)
light travels faster through the atmosphere than sound.
d)
sound travels faster through the atmosphere than light.
17.
As Maria stood knee-deep in the ocean, she noted how high the waves came up on her compared to the day before.  Which property of waves was Maria observing?
a)
amplitude
b)
speed
c)
wavelength
d)
frequency
18.
Which occurs when light bounces off a smooth, hard surface?
a)
absorption
b)
reflection
c)
magnification
d)
refraction
19.
Materials that absorb all light hitting them are
a)
translucent.
b)
luminous.
c)
opaque.
d)
transparent.
20.
What color reflects all colors of light?
a)
black
b)
white
c)
green
d)
red
21.
Kelly wants curtains that let in some light but prevent people outside from seeing into the house.  The best choice of material would be one that is 
a)
opaque
b)
reflecting
c)
transparent
d)
translucent
22.
Josh yelled from the top of a canyon and an echo was created.  This happened because the sound waves of his voice bounced back from the canyon walls.  Which property of waves occurred?
a)
diffraction
b)
reflection
c)
interference
d)
refraction
23.
Why are light- colored clothes cooler to wear in the summer than dark-colored clothes?
a)
Light-colored clothes let more air in.
b)
Light-colored clothes prevent sweating.
c)
Light-colored clothes are not as heavy as dark-colored clothes.
d)
Light-colored clothes reflect more light than dark-colored clothes.
24.
In old movies, people sometimes put their ear on a railroad track to see if a train is coming.  This works because the iron rail
a)
is heated by friction.
b)
is cooler than air.
c)
carries sound better than air.
d)
is connected directly to the train.
25.
Sound A has a shorter wavelength than Sound B.  This means that Sound A will
a)
be louder than Sound B.
b)
be softer than Sound B.
c)
have a lower pitch than Sound B.
d)
have a higher pitch than Sound B.
26.
Sound can travel fastest through
a)
air 
b)
metal
c)
water
d)
outer space
27.
Sound waves are produced by
a)
light.
b)
heat.
c)
vibrations.
d)
gravity.
28.
Imagine a ringing bell set inside a sealed glass jar.  Once all the air is removed and a vacuum is created, the ringing sound is no longer heard.  Explain why this happens.
a)
The glass prevents any sound from escaping.
b)
The lack of air in the jar causes the ringing to stop.
c)
Without the air, the sound waves cannot travel to the ear.
d)
The pressure of the outside air causes the sound to remain within the jar.
29.
The highest point of a wave is its 
a)
crest.
b)
breaker.
c)
trough.
d)
swel.l
30.
Porous building materials are often used on the surfaces in classrooms and restaurants because these surfaces tend to __________ sound waves.
a)
absorb
b)
refract
c)
reflect
d)
transmit
31.
As light waves pass through openings in a barrier or around the edges of an object, the waves change direction or
a)
are absorbed.
b)
diffract.
c)
reflect.
d)
refract.
32.
Why does the human eye observe the different colors of a rainbow?
a)
White light is broken down in the eye into its separate colors.
b)
Different colors of light travel at different speeds to the eye.
c)
The eye sees different wavelengths of light as different colors.
d)
The eye sees different colors of light in different locations of the eye.
33.
Which of the following would reflect rather than refract light?
a)
magnifying glass
b)
mirror
c)
prism
d)
lens
34.
In order for a fish to see a bug just above the surface of the water, light travels from the insect through the air and crosses into the water until it reaches the fishes' eye. Which statement is true regarding the light as it travels?
a)
It will bend as it hits the water because it slows down.
b)
It will bend as it hits the water because the water particles move slower than air.
c)
It will travel straight from the bug to the fishes' eye because that is the most direct path.
d)
It will travel straight from the bug to the fishes' eye because it will continue to travel at the speed of light.
35.
The lowest point of a wave is its
a)
trough
b)
breaker
c)
swell
d)
crest