LIGHT and WAVES -- Unit 5 Lessons 1 and 2
1.
A jellyfish is floating in the ocean. What will happen to the jellyfish when a wave passes
through the water?
A.
It will be carried away with the wave.
B.
It will not move, but the water around it will move.
C.
It will be moved up to the surface of the water.
D.
It will move up and down, but it will return to about the same place.
2.
What is a wave?
A.
a disturbance that transfers energy
B.
a disturbance that transfers matter
C.
any type of energy that makes particles move
D.
any type of matter that vibrates back and forth
3.
What do radio waves transfer between a cell phone and a cell phone tower?
A.
sound
C.
the medium
B.
energy
D.
air particles
The graph below shows the motion of particles as a wave passes through a medium.
4.
The wave is moving along the x-axis. What type of wave is shown in the graph?
A.
medium
B.
transverse
C.
longitudinal
D.
electromagnetic
5.
An earthquake wave travels from its source underground to the ocean floor. What will
happen to the wave when it meets the water in the ocean?
A.
It will stop.
B.
It will move faster.
C.
It will move slower.
D.
It will continue to move at the same speed.
6.
The diagram below shows a wave pattern.
What part of a wave is represented by B?
A.
crest
B.
trough
C.
amplitude
D.
wavelength
7.
There are two types of waves: mechanical and electromagnetic. Microwaves, infrared
waves, and radio waves are examples of electromagnetic waves. Which statement is true
about the speed of an electromagnetic wave?
A.
It is not affected by changes in media.
B.
It is slower in a vacuum than in a medium.
C.
In a vacuum, its speed equals half the speed of light.
D.
It slows down when it goes from a vacuum to a medium.
8.
The speed of a mechanical wave through a medium depends on the type of medium. It
also depends on the type of mechanical wave. Which statement is true?
A.
All waves travel at the same speed through any medium.
B.
All waves travel at the same speed if no medium is present.
C.
Electromagnetic waves require a medium, but mechanical waves do not.
D.
Mechanical waves require a medium, but electromagnetic waves do not.
9.
Through which of these media do sound waves travel most slowly?
A.
iron B.
wood
C.
water
D.
cold air
10. Nicholas made time measurements of waves in a wave tank. The diagram below shows
two of his timed stopwatch readings for waves.
What is the frequency of these waves?
A.
2s
B.
4s
C.
0.5 Hz
D.
2 Hz