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5.0 Waves

Total questions: 35

Worksheet time: 30mins

Name
Class
Date
1.

Displacement-time graph in Diagram 2 shows an oscillation of a loaded jigsaw blade in air. What will the graph likely be if it is oscillated the same way on the moon?

a)
b)
c)
d)
2.

Diagram 3 shows an experiment carried out by Sarah to investigate a wave phenomenon using Barton’s pendulum. Sarah observed that when pendulum X oscillates, pendulum C oscillates with maximum amplitude. The wave phenomenon involved is

a)

inertia

b)

resonance

c)

damping

d)

momentum

3.

Diagram 4 shows a boy swinging on a swing at the playground. Amplitude of the swing decreases with time due to damping. Which of the following graphs represents the oscillation of the swing which undergoes damping?

a)
b)
c)
d)
4.

Diagram 5(a) shows an incident wavefronts of a plane wave approaching a barrier. Diagram 5(b) shows reflected wavefronts of the plane wave reflects by the barrier. Which of the following statements is true about the incident and reflected waves?

a)

The incident wave has the same speed as the reflected wave.

b)

The incident wave has a longer wavelength than the reflected wave.

c)

The incident wave has a higher frequency than the reflected wave.

d)

The incident wave has same direction as the reflected wave.

5.

A ship in Diagram 7 uses an echo sounder to send pulses of ultrasound downwards to the seabed. The time taken for each echo to return is 1.4 s and the speed of sound in water is 1 400 m s-1. What is the depth of the water?

a)

540 m

b)

620 m

c)

700 m

d)

980 m

6.

Diagram 7 shows a reflected sound wave is received by a receiver. What is the value of reflected angle, r?

a)

15o

b)

30o

c)

60o

d)

90o

7.

Diagram 8 shows a plane wavefront travels from region x to region y. Which of the following is true regarding the wavelength in region x and region y?

a)

Region x = 20.0 cm

Region y = 25.0 cm

b)

Region x = 15.0 cm

Region y = 33.3 cm

c)

Region x = 20.0 cm

Region y = 33.3 cm

d)

Region x = 15.0 cm

Region y = 25.0 cm

8.

Diagram 9 shows a ripple tank being used to investigate waves in water. The water wave travels from an area of deep water to an area of shallow water. Which of the following about the wave motion from deep water to shallow water is correct?

a)

Frequency and speed remain unchanged. Wavelength has changed.

b)

Frequency and wavelength remain unchanged. Speed has changed

c)

Speed remains unchanged. Wavelength and frequency have changed

d)

Frequency remains unchanged. Speed and wavelength have changed.

9.

Diagram 10 shows a student can hear the sound from the radio even though he stands beside the building. Name the wave phenomenon involved.

a)

Reflection

b)

Refraction

c)

Diffraction

d)

Interference

10.

Which diagram shows the phenomenon of wave diffraction?

a)
b)
c)
d)
11.

Diagram 11 shows a set up apparatus in a Young’s double slit experiment. A red light source is used to form red fringes on the screen. If the red-light source is replaced by a blue light source, the

a)

brightness of the fringes increases.

b)

thickness of the fringes increases.

c)

distance between fringes increases.

d)

number of fringes increases.

12.

Diagram 12 shows the interference wave patterns formed by waves from two coherent sources, S1 and S2 . Which combination is correct?

a)

Constructive interference = R

Destructive interference = Q

b)

Constructive interference = P

Destructive interference = Q

c)

Constructive interference = Q

Destructive interference = R

d)

Constructive interference = R

Destructive interference = P

13.

Diagram 13 shows Ali uses a remote control to change the TV channel. State the type of wave used in the remote control.

a)

Infrared

b)

Radio wave

c)

Microwave

d)

Ultraviolet

14.

Arrange the electromagnetic waves in order of increasing frequency

a)

Ultraviolet rays, infrared rays, microwaves, gamma rays.

b)

Microwaves, infrared rays, ultraviolet rays, gamma rays

c)

Infrared rays, microwaves, ultraviolet rays, gamma rays

d)

Microwaves, gamma rays, infrared rays, ultraviolet rays

15.

Diagram 1 shows a displacement-distance graph of a water wave in a ripple tank. If the motor vibrates with a constant frequency and produces 5 complete waves in one second, calculate the speed of the wave.

a)

16 cm s–1

b)

28 cm s–1

c)

80 cm s–1

d)

140 cm s–1

16.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
17.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
18.
The highest point on a wave is:
a)
the crest
b)
the trough
c)
the top
d)
the coast 
19.
The lowest point on a wave is the:
a)
Amplitude
b)
Crest
c)
Trough
d)
Wavelength
20.
The number of wavelengths that pass a point each per second is:
a)
frequency
b)
period
c)
longitudinal 
d)
transverse wave 
21.
Which vocabulary term is used to identify the distance between points C & G?
a)
Amplitude
b)
Crest
c)
Frequency
d)
Wavelength
22.
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.
23.
A mechanical wave cannot travel through...
a)
a vacuum(empty space).
b)
water.
c)
air. 
d)
glass.
24.
Which letter(s) represent the trough of the wave?
a)
A
b)
B & D
c)
D
d)
C & G
25.
Which letter(s) represent the crest of the wave?
a)
A
b)
B & D
c)
B & F
d)
F
26.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
27.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
28.
Which of the following can sound travel through?
a)
solid
b)
liquid
c)
gas
d)
all of the above
29.
crest to crest or trough to trough
a)
crest
b)
trough
c)
amplitude
d)
wavelength
30.
Electromagnetic waves include the following except
a)
radio waves
b)
X-rays
c)
doing the wave at a football game
d)
microwaves
31.
regular disturbances that carry energy through matter or space
a)
crest
b)
energy
c)
wave
d)
trough
32.
which material does sound travel the fastest?
a)
solid 
b)
liquid 
c)
gases
33.
When a wave strikes and object and bounces off. (example echo)
a)
medium
b)
refraction
c)
reflection
d)
interference
34.
When a wave bends as it passes through at an angle from one medium to another.(example: pencil in a glass of water-)
a)
medium
b)
refraction
c)
reflection
d)
interference
35.
What number represents the amplitude?
a)
1
b)
2
c)
3
d)
4

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