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WorksheetsUnit 3 Review
Total questions: 20
Worksheet time: 11mins
Name
Class
Date
1.
An old movie poster used a quote "In space, no one can hear you scream!" Why is this true or not true?
a)
The quote is incorrect, you can hear sound in outer space.
b)
Sound cannot be polarized. So, you cannot hear sound in space.
c)
Sound is an electromagnetic wave and needs no medium to travel through.
d)
Sound needs a medium for the wave to vibrate and there is nothing in space to vibrate.
2.
Why does light behave as shown in the image when it passes from air to glass?
a)
Light is scattered on the surface of the glass.
b)
Light slows down when it passes into a denser medium.
c)
Light is partially reflected on the surface of the glass.
d)
Light splits into its constituent colors when it passes through glass.
3.
What happens when light strikes an opaque object?
a)
All of the light passes through the object.
b)
All of the light is reflected by the object.
c)
None of the light passes through the object.
d)
Some of the light passes through and some of the light is absorbed or scattered by the object.
4.
The earth receives energy from the sun. You feel the energy on your skin every time you go outside on a sunny day. Which form of energy causes you to get a sun burn if you stay in the sun too long?
a)
visible
b)
gamma rays
c)
ultraviolet
d)
radio waves
5.
The method of heat transfer by which the sun warms the earth is
a)
conduction
b)
convection
c)
radiation
d)
solaration
6.
Which type of wave would actually slow down when moving from the air into the ocean?
a)
Sound Waves
b)
Light Waves
c)
Earthquake Waves
d)
Ocean Surface Waves
7.
You see lightning before you hear thunder because
a)
light waves can travel through a vacuum.
b)
sound waves cannot travel through the air.
c)
light waves travel faster than sound waves.
d)
sound waves travel faster than light waves.
8.
Which object is visible only by reflection?
a)
the Sun
b)
Earth's moon
c)
a candle flame
d)
a bolt of lightning
9.
Which of these waves can NOT travel through the vacuum of space?
a)
microwaves
b)
radio waves
c)
light waves
d)
sound waves
10.
One part of the electromagnetic spectrum that arrives on Earth as solar radiation from the Sun is the visible spectrum. Wavelengths of the visible spectrum combine to form what we refer to as
a)
day light.
b)
white light.
c)
shortwave radiation.
d)
ultraviolet radiation.
11.
During a baseball game a pitcher threw a baseball, and the catcher, who was behind home plate, caught it. Which is true about the pitcher when the catcher caught the ball?
a)
He saw the catcher catch the ball first.
b)
He heard and saw the ball at the same time.
c)
He heard the sound of the catcher's mitt first.
d)
He saw the catcher catch the ball, but did not hear it.
12.
Eyeglasses bend light help the image form properly on the retina. The bending of light as it passes from one medium to another is called
a)
diffraction
b)
interference
c)
reflection
d)
refraction
13.
What happens when light strikes a translucent object?
a)
All of the light passes through the object.
b)
All of the light is reflected by the object.
c)
None of the light can pass through the object.
d)
Some of the light passes through, and some of the light is absorbed or scattered by the object.
14.
Compare the speed of an X-ray to that of infrared waves in a vacuum. How do they differ?
a)
X rays are seven times faster than X rays.
b)
There is no difference; they travel at the same speed.
c)
Infrared waves travel 107 faster than X rays.
d)
X rays travel 107 times faster than infrared waves.
15.
How are the energy of infrared, visible light and ultraviolet rays related? And why?
a)
Infrared contains the least energy and ultraviolet contains the most energy. The energy of a wave is proportional to its wavelength.
b)
Infrared contains the most energy and ultraviolet contains the least energy. The energy of a wave is proportional to its wavelength.
c)
Infrared contains the least energy and ultraviolet contains the most energy. The energy of a wave is inversely proportional to its wavelength.
d)
Infrared contains the most energy and ultraviolet contains the least energy. The energy of a wave is inversely proportional to its wavelength.
16.
When light hits a mirror it bounces off of it. This is why you can see yourself in a mirror.
This property of light is
This property of light is
a)
absorption.
b)
reflection.
c)
refraction.
d)
transparent.
17.
Based on the images seen here, identify which phase of matter would transmit light waves the fastest, and why?
a)
The gas would transmit the fastest because the particles move the fastest.
b)
The solid would transmit the fastest because the particles are closest together.
c)
The liquid would transmit the fastest because the particles are the most freely moving.
d)
The gas would transmit the fastest because there are the fewest particles to interfere with the waves.
18.
Why is it a better to wear a white shirt on a hot summer day instead of a black shirt?
a)
A white shirt absorbs all colors of light and would be cooler in the sun.
b)
A black shirt absorbs all colors of light and would be cooler in the sun.
c)
A white shirt reflects all colors of light and would be cooler in the sun.
d)
A black shirt reflects all colors of light and would be cooler in the sun.
19.
Each of the colors of light in the visible light spectrum has
a)
the same amount of energy.
b)
very different amounts of energy.
c)
slightly different amounts of energy.
d)
impossible to tell the energy of each color.
20.
The hammering on a train track is often heard twice by workers farther down the track; first as the sound travels through the steel and second as the sound travels through the air. This suggests which is true?
a)
The speed of sound in air is greater than the speed of sound in steel.
b)
The speed of sound is equal in air and steel.
c)
The speed of sound in air is much greater than the speed of sound in steel.
d)
The speed of sound in air is lesser than the speed of sound in steel.
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