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Mechanical Waves Unit Test

Total questions: 20

Worksheet time: 26mins

Name
Class
Date
1.

What is the velocity of a wave with a frequency of 1.8 Hz and a wavelength 3.6 m? v = λfv\ =\ \lambda f

2.

Label the point with an antinode.

3.

Label the point with a node.

4.

Which of the following is NOT a type of mechanical wave?

a)

Transverse

b)

Longitudinal

c)

Ocean

d)

Surface

5.

Draw two waves with the SAME amplitude. One has high frequency, and one has low frequency.

6.

Match the following definition to the correct explanation.

a)

Law of Superposition

1.

The total amplitude of the waves is equal to the sum of the amplitudes of the individual waves.

b)

Constructive Interference

2.

Two waves with the same frequency and phase.

c)

Destructive Interference

3.

Two waves with the same frequency and opposite phase.

7.

The pitch of a sound is related to the...

a)

amplitude of the sound wave

b)

frequency of the sound wave

c)

speed of a sound wave

d)

reflection of a sound wave

8.

A wave pulse is created in a Slinky. It takes 1.5 seconds to travel the length of the Slinky. If the Slinky is 8 meters long, what is the speed of the wave? v = λTv\ =\ \frac{\lambda}{T}

9.

The unit that compares the intensity of sound is called...

a)

bel

b)

hertz

c)

decibel

d)

meter

10.
When the frequency of a wave increases, what happens to the wavelength?
a)
The wavelength is not directly affected by the frequency of a wave.
b)
The wavelength increases.
c)
The wavelength decreases.
d)
More specific information is needed to form a conclusion about the wavelength.
11.

The (a)   Effect refers to the change in

observed frequency during the relative

motion between a wave source and its

observer.

12.

A string is clamped at both ends and plucked so it produces a standing wave as shown above. How many nodes and antinodes are there?

a)

2 nodes, 3 antinodes

b)

3 nodes, 2 antinodes

c)

4 nodes, 3 antinodes

d)

3 nodes, 4 antinodes

13.
Waves are a transfer of what?
a)
Heat
b)
Light
c)
Energy
d)
Food
14.

Patterns are only created within the medium at specific frequencies/vibration. These frequencies are known as...

a)

timbres

b)

beats

c)

harmonics

d)

fundamental

15.

Which transverse wave has the highest frequency?

a)

1

b)

2

c)

3

d)

4

16.
Which statement can be made based on these data?
a)
Sound waves are slowest in liquids and fastest in gases.
b)
Sound waves are fastest in solids and slowest in gases.
c)
Speed of a sound wave increases from one medium to another.
d)
Speed of a sound wave decreases from one medium to another.
17.

At which point is the Compression located?

a)

B

b)

D

c)

E

d)

F

e)

G

18.

At which point is the Wavelength located?

a)

B

b)

D

c)

E

d)

F

e)

G

19.

At which point is the Crest located?

a)

A

b)

C

c)

D

d)

E

e)

F

20.
The number of wavelengths that pass a point each per second is:
a)
frequency
b)
period
c)
longitudinal 
d)
transverse wave