Quiz about Unit 7 Waves Review

Question 1

All waves carry

Accepted Answer

energy

Answer

water

Answer

sound

Answer

matter

Question 2

A period is

Accepted Answer

Amount of time it takes a wavelength to complete one cycle.

Answer

How many wave lengths happen in a second.

Answer

An indication of the amount of energy in a wave.

Answer

The distance between two crests or two troughs.

Question 3

The number of wave cycles that pass a point per second:

Accepted Answer

frequency

Answer

period

Answer

longitudinal

Answer

transverse wave

Question 4

Frequency is measured in

Accepted Answer

Hertz

Answer

Newtons

Answer

Joules

Answer

Decibels

Question 5

The highest point on a wave is:

Accepted Answer

the crest

Answer

the trough

Answer

the top

Answer

the coast

Question 6

The lowest point on a wave is the:

Accepted Answer

Trough

Answer

Amplitude

Answer

Crest

Answer

Wavelength

Question 7

The distance between crest to crest or trough to trough is called?

Accepted Answer

Wavelength

Answer

Amplitude

Answer

Wave Speed

Answer

Frequency

Question 8

When the disturbance of the wave is in the same direction as the path of the wave it is called a

Accepted Answer

Longitudinal wave

Answer

Transverse wave

Answer

X ray

Answer

Sound wave

Question 9

Which type of wave is being described? The particles move perpendicular to the direction of the wave.

Accepted Answer

Transverse wave

Answer

Microwave

Answer

Longitudinal wave

Answer

Light wave

Question 10

Which letter(s) represent the crest of the wave?

Accepted Answer

B & F

Answer

A

Answer

B & D

Answer

F

Question 11

Which letter(s) represent the trough of the wave?

Accepted Answer

D

Answer

A

Answer

B & D

Answer

C & G

Question 12

Which letter represents amplitude?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 13

What is the amplitude of the wave?

Accepted Answer

3 cm

Answer

8 cm

Answer

16 cm

Answer

24 cm

Question 14

What is the wavelength of the wave?

Accepted Answer

8 cm

Answer

3 cm

Answer

16 cm

Answer

24 cm

Question 15

Which wave has the shortest wavelength?

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 16

Which wave has a greater frequency?

Accepted Answer

A

Answer

B

Question 17

How many wavelengths are in this wave chain?

Accepted Answer

4

Answer

8

Answer

2

Answer

6

Question 18

The period of a wave is 4 seconds. What is the frequency?

Accepted Answer

1/4 Hz

Answer

1/4 sec

Answer

4 Hz

Answer

2 Hz

Question 19

When the frequency of a wave increases, what happens to the wavelength?

Accepted Answer

The wavelength decreases.

Answer

The wavelength is not directly affected by the frequency of a wave.

Answer

The wavelength increases.

Answer

More specific information is needed to form a conclusion about the wavelength.

Question 20

If you have low frequency waves, what that tell you about the wave energy?

Accepted Answer

It is low.

Answer

It is high.

Answer

It is medium.

Answer

Nothing

Question 21

A guitar string vibrates with a frequency of 320 hz. If the wavelength of the vibration is 0.23 meters what is the speed of the wave?

Accepted Answer

73.6 m/s

Answer

320.23 m/s

Answer

1391.3 hz

Answer

73.6 m/hz

Question 22

If a wave has a frequency of 0.4 Hz and a wavelength of 15 m what is its speed?

Accepted Answer

6 m/s

Answer

0.2 m/s

Answer

32 m/s

Answer

60 m/s

Question 23

A wave has wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave?

Accepted Answer

34 Hz

Answer

34 m/s

Answer

3400 Hz

Answer

3400 m/s

Question 24

A wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?

Accepted Answer

5 m

Answer

25 m

Answer

125 m

Answer

25 m/s

Question 25

A wave has a frequency of 4.0 Hz, if it is travelling at a speed of 20 m/s what is the wavelength of the wave?

Accepted Answer

5 m

Answer

80 m

Answer

16 m

Answer

0.2 m

Question 26

When two waves combine to form a new wave with a larger amplitude, it is called

Accepted Answer

Constructive Interference

Answer

Diffraction

Answer

Destructive Interference

Answer

Resonance

Question 27

What phenomenon does this image demonstrate?

Accepted Answer

Destructive interference

Answer

Constructive interference

Answer

Increasing frequency

Answer

Increasing period

Question 28

The action of a wave bouncing off a surface is called _________.

Accepted Answer

reflection

Answer

rarefaction

Answer

refraction

Answer

diffraction

Question 29

When a wave bends as it passes through at an angle from one medium to another (example: pencil in a glass of water).

Accepted Answer

refraction

Answer

medium

Answer

reflection

Answer

interference

Question 30

The action of a wave bending around a barrier is called _________.

Accepted Answer

diffraction

Answer

reflection

Answer

refraction

Answer

rarefaction

Unit 7 Waves Review

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