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G9 WAVES

Total questions: 20

Worksheet time: 40mins

Name
Class
Date
1.

A physics student notices that 4.0 waves arrive at the beach every 20 seconds. The frequency

of these waves is ______.

a)

0.2Hz

b)

4.0Hz

c)

5.0Hz

d)

8.0Hz

2.

The diagram below shows waves A and B in the same medium. How is wave B different to wave A?

a)

twice the amplitude and twice the wavelength

b)

twice the amplitude and half the wavelength

c)

the same amplitude and half the wavelength

d)

half the amplitude and the same wavelength

3.

The time required to produce one cycle of a wave is known as the wave’s _____.

a)

period

b)

frequency

c)

wavelength

d)

amplitude

4.

A microwave with a frequency of 5.0 × 1010 𝐻𝑧 has a period of

a)

2.0x10-11s

b)

6.0x10-11s

c)

3.0x10-11s

d)

5.0x10-11s

5.

Which of the following wave diagrams have both

wavelength (𝜆) and amplitude (𝐴) labeled correctly?

a)
b)
c)
d)
6.

The diagram below represents a wave. What is the amplitude of the wave?

a)

0.20 m

b)

0.40 m

c)

2.0 m

d)

6.0 m

7.

The diagram represents a wave. What is the wavelength of the wave?

a)

0.20 m

b)

0.40 m

c)

2.0 m

d)

6.0 m

8.

The diagram represents a wave. What is the speed of the wave if its frequency is 8.0 hertz?

a)

1.6 m/s

b)

3.2 m/s

c)

16 m/s

d)

48 m/s

9.

Two waves are traveling through the same container of nitrogen gas. Wave A has a wavelength of 1.5 m. Wave B has a wavelength of 4.5 m. The speed of wave B must be ________ the speed of wave A

a)

one-ninth

b)

same

c)

one-third

d)

three times larger than

10.

Air particles around a vibrating tuning fork move back and forth as the wave progresses to the right as shown

below. Identify the type of wave.

a)

Longitudinal

b)

Transverse

c)

Water wave

d)

Light wave

11.

Air particles around a vibrating tuning fork move back and forth as the wave progresses to the right as shown

below. If the wavelength of the wave is 6.0 𝑚 and the wave travels with a speed of 300 𝑚/𝑠, find the frequency of the wave.

a)

30Hz

b)

50Hz

c)

1800Hz

d)

0.3Hz

12.

Air particles around a vibrating tuning fork move back and forth as the wave progresses to the right as shown

below. Calculate the wave period if the frequency is 50Hz.

a)

50/1=50s

b)

1/50 =0.02s

c)

50 x 1 =50s

d)

51s

13.

Air particles around a vibrating tuning fork move back and forth as the wave progresses to the right as shown

below. If the wavelength of the wave is 6.0 𝑚 and the wave travels with a speed of 300 𝑚/𝑠. If the frequency were doubled, what would the new wavelength be?

a)

12m

b)

6m

c)

3m

d)

24m

14.

The following diagram represents a vibrating string with a periodic wave originating at A and moving to G, a distance of 6.0 meters.

As the wave moves toward G, point E on the string will move vertically down and then vertically up. What

type of wave is represented by the diagram?


a)

Longitudinal

b)

sound wave

c)

transverse wave

d)

pressure wave

15.

The following diagram represents a vibrating string with a periodic wave originating at A and moving to G, a distance of 6.0 meters.

What is the wavelength of this wave?

a)

6.0m

b)

12m

c)

3m

d)

2m

16.

The following diagram represents a vibrating string with a periodic wave originating at A and moving to G, a distance of 6.0 meters.

If the waves were produced at a faster rate, the distance between points D and E would _____.

a)

increase

b)

stay the same

c)

decrease

d)

get bigger

17.

Which phenomenon occurs when an object absorbs wave energy that matches the object’s natural frequency?

a)

Refraction

b)

Resonance

c)

Interference

d)

Reflection

18.

Which phenomenon occurs when an object slows down and changes direction when it enters a different medium?

a)

Refraction

b)

Resonance

c)

Interference

d)

Reflection

19.

As represented in the diagram below, two wave pulses, X and Y, are traveling toward each other in a rope. Both wave pulses have an amplitude of 0.30 m.

a)
b)
c)
d)
20.

As a longitudinal wave moves through a medium, the particles of the medium move______.

a)

perpendicular to the direction of wave travel

b)

parallel to the direction of wave travel

c)

in ellipses

d)

up and down