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bang marjo basic waves

Total questions: 100

Worksheet time: 3hrs 2mins

Name
Class
Date
1.
Waves are a transfer of what?
a)
Heat
b)
Light
c)
Energy
d)
Food
2.

What is frequency measured in?

a)

Milliseconds

b)

Miles

c)

Hertz

d)

Kilograms

3.

What is the number of complete waves passing a fixed point in a given amount of time?

a)

Amplitude

b)

Intensity

c)

Wavelength

d)

Frequency

4.

What kind of wave is pictured below?

a)

compressional wave

b)

transverse wave

c)

sound wave

d)

mechanical wave

5.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
6.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
7.
Which wave is pictured?
a)
Transverse
b)
Longitudinal
c)
Both
d)
Neither
8.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
9.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
10.
The highest point on a wave is:
a)
the crest
b)
the trough
c)
the top
d)
the coast 
11.
The lowest point on a wave is the:
a)
Amplitude
b)
Crest
c)
Trough
d)
Wavelength
12.
What types of waves carry energy at a right angle or perpendicular to the direction of the energy flow?
a)
Longitudinal waves
b)
Transverse waves
c)
Sound waves
d)
P-waves
13.
The most dense part of a longitudinal wave.
a)
Density
b)
Compression
c)
Rarefaction
d)
Amplitude
14.
Sound is an example of which type of wave?
a)
Transverse
b)
Longitudinal
c)
Both
d)
Neither
15.
Which wave travels parallel in relation to a medium?
a)
Transverse
b)
Longitudinal
c)
Both
d)
Neither
16.
Material (matter) through which a wave travels
a)
medium
b)
Doppler Effect
c)
sound
d)
pitch
17.
A part in a longitudinal wave where the particles are spread apart
a)
compression
b)
rarefaction
c)
crest
d)
trough
18.
The SI unit for frequency is ________.
a)
m
b)
m/s
c)
hertz
d)
s
19.
Which of the following can sound travel through?
a)
solid
b)
liquid
c)
gas
d)
all of the above
20.
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.
21.
A mechanical wave cannot travel through...
a)
a vacuum(empty space).
b)
water.
c)
air. 
d)
glass.
22.

Electromagnetic waves include the following except

a)

radio waves

b)

X-rays

c)

ocean waves

d)

microwaves

23.
The number of wavelengths that pass a point each per second is:
a)
frequency
b)
period
c)
longitudinal 
d)
transverse wave 
24.
All waves carry
a)
energy
b)
light 
c)
matter
d)
particles
25.
What kind of wave is pictured below?
a)
compressional wave
b)
transverse wave
c)
sound wave
d)
mechanical wave
26.

Which type of wave moves parallel to the direction of the wave?

a)

transverse

b)

longitudinal

c)

surface

d)

electromagnetic

27.

It is the high pressure part of the wave where the particles are close together. It is part A on this picture.

a)

Compression

b)

Amplituide

c)

Rarefaction

d)

Wavelength

28.
The distance from one point to the next corresponding point on a wave is called the ________________.
a)
waveform
b)
peak
c)
amplitude
d)
wavelength
29.
Which vocabulary term is used to identify the distance between points C & G?
a)
Amplitude
b)
Crest
c)
Frequency
d)
Wavelength
30.
Which wave has the largest wavelength?
a)
A
b)
B
c)
C
d)
None (same wavelength)
31.
If all three are waves of light, which wave has the largest speed?
a)
A
b)
B
c)
C
d)
None (same speed)
32.
What is the speed of a sound wave that has a frequency of 250 hertz and a wavelength of 8 meters? 
a)
31 m/s
b)
250 m/s
c)
2000 m/s
d)
5280 m/s
33.
A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling
a)

surface wave

b)

transverse wave

c)

electromagnetic  wave

d)

longitudinal wave

34.
 A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?
a)
500 m/s
b)
50 m/s
c)
5 m/s
d)
0.5 m/s
35.
After the train passed, the pitch of the train whistle became lower. This change in sound would be represented by what change in the diagram above? 
a)
The distance represented by C would increase. 
b)
The distance represented by C would decrease. 
c)
The distance represented by D would increase. 
d)
The distance represented by D would decrease. 
36.

What is the phase difference between the two waves in the picture?

a)

π\pi rad

b)

0 rad

c)

π2\frac{\pi}{2} rad

d)

π4\frac{\pi}{4} rad

37.

The frequency of a certain wave is 500 Hz and its speed is 340 ms–1.What is the phase difference between the motions of two points on the wave 0.17 m apart?

a)

π rad

b)

π/4 rad

c)

π/2 rad

d)

3π/4 rad

38.

What is the phase difference between two points 30cm apart if the wavelength is 1.5m?

a)

1.26 rad

b)

126 rad

c)

1.25663 rad

d)

31 rad

39.

What is the phase difference between points O and D?

a)

π/4 rad

b)

2π rad

c)

π rad

d)

π/2 rad

40.

choose correct statement related to the picture

a)

Direction of vibration of particles is parallel to the direction of propagation of waves

b)

Direction of vibration of particles is perpendicular to the direction of propagation of waves

c)

The picture shown transverse wave

41.

The phase difference for the two waves shown in the figure is

a)

2π

b)

π

c)

2π/3

d)

π/2

e)

It is not possible to answer this question without additional information

42.
Which letter(s) represent the trough of the wave?
a)
A
b)
B & D
c)
D
d)
C & G
43.
Which letter(s) represent the crest of the wave?
a)
A
b)
B & D
c)
B & F
d)
F
44.
How many waves are in this wave chain?
a)
6
b)
3
c)
4
d)
5
45.

The speed of sound in air is 340 m/s. The frequency of the sound waves generated by my voice is 720 Hz. Calculate the wavelength of sound of my voice.

a)

380 m

b)

0.472 m

c)

2.11 m

d)

244,800

e)

none of these are correct

46.
A television remote control is used to direct pulses of electromagnetic radiation to a receiver on a television. What does this communication between the remote control and the television illustrate about electromagnetic radiation?
a)
It transfers energy without transferring mass.
b)
It diffracts and accelerates in air.
c)
It possesses energy inversely proportional to its frequency.
d)
It is a longitudinal wave.
47.
Which wave has the largest amplitude?
a)
A
b)
B
c)
C
d)
none of the above
48.
What wave has the most troughs?
a)
A
b)
B
c)
C
d)
D
49.
Which waves have the same amplitude?
a)
BD
b)
AB
c)
AC
d)
AD
50.
Which letter identifies the wavelength? 
a)
A
b)
B
c)
C
d)
D
51.
A student is given the following data in relation to an observed wave in the science laboratory.
1. Requires a medium to travel through
 
2. Cannot travel through a vacuum
 
3. Oscillating material does not move far from its original position
What can the student conclude about the wave from this information?
a)
The wave is a light wave.
b)
The wave is a mechanical wave.
c)
The wave is an electromagnetic wave.
d)
The wave is an ultraviolet wave.
52.
When a transverse wave travels through a medium, how do the individual particles of the medium move?
a)
In circles
b)
In ellipses
c)
Parallel to the direction the wave travels
d)
Perpendicular to the direction the wave travels
53.
A wave produced by an earthquake is traveling from the west to east through some rock. If the particles of the rock are vibrating in a north-south direction, what is the best classification of the wave?
a)
Transverse
b)
Longitudinal
c)
Radio wave
d)
Microwave
54.

The frequency of a certain wave is 500 Hz and its speed is 340 ms–1.What is the phase difference between the motions of two points on the wave 0.17 m apart?

a)

π rad

b)

π/4 rad

c)

π/2 rad

d)

3π/4 rad

55.

The diagram shows two sinusoidal waveforms.

At time t = 0 the waves are in phase. At the dotted line, t = 18 s.


At which time is the phase difference between the two oscillations ⅛ of a cycle?

a)

8.0s

b)

4.5s

c)

4.0s

d)

9.0s

56.

What is the phase difference between two points 30cm apart if the wavelength is 1.5m?

a)

1.26 rad

b)

126 rad

c)

12.6 rad

d)

31 rad

57.

2 points on a progressive wave are 1/3 of a wavelength apart. The distance between the two points is 2cm. If the speed of the wave is 10 ms-1 what is the frequency of the wave?

a)

5Hz

b)

20Hz

c)

167Hz

d)

1500Hz

58.

What is the approximate phase difference between the waves shown?

a)

2π

b)

3 π/2

c)

π

d)

π/2

59.

Six wavefronts are shown in the diagram. What is the wavelength of the wave?

a)

5 cm

b)

6 cm

c)

7.5 cm

d)

30 cm

60.

From this picture determine the Periode and the Amplitude of the wave

a)

A=2 cm ; T = 6 s

b)

A=-2 cm ; T = 6 s

c)

A=6 cm ; T = 36 s

d)

A=2 cm ; T = 36 s

61.

From these graphs, determine the speed of the wave

a)

3 cm/s

b)

3 m/s

c)

6 m/s

d)

-2 cm/s

62.

Choose the correct label (you can choose only one).

a)

a= wavelength

b)

b=trough and c=crest

c)

d=amplitude

d)

all of the choices given

63.

Which of the following is a CORRECT statement?

a)

Sound can travel through the vacuum of space

b)

Sound can't travel through the vacuum of space

c)

Sound is produced in the vacuum of space

d)

Sound can travel between planets

64.
What happens when you increase the amplitude of a sound?
a)
it makes the sound louder
b)
it makes the sound travel faster
c)
it increases the wavelength of the sound
d)
it increases the frequency of the sound
65.

the diagram below is a graph showing how the height of water at a point in marina varies with time t as the waves pass the point. what is the correct label for W and X?

a)

W = amplitude

X = period

b)

W = displacement

X = wavelength

c)

W = amplitude

X = wavelength

d)

W = displacement

X = period

66.

The graph shows the variation of a quantity P with a quantity Q for a sound wave travelling in air. what is P and Q be?

a)

P = amplitude

Q = intensity

b)

P = frequency

Q = wavelength

c)

P = speed

Q = frequency

d)

P = wavelength

Q = period

67.

A wave has period T, wavelength λ and amplitude A. The wave is shown on a graph of displacement x against distance d. Which graph is correctly labelled?

a)

b)

c)

d)

68.

The four graphs represent a progressive wave on a stretched string. Graphs A and B show how the displacement d varies with distance x along the string at one instant. Graphs C and D show how the displacement d varies with time t at a particular value of x.

The labels on the graphs are intended to show the wavelength λ, the period T and the amplitude a of the wave, but only one graph is correctly labelled. Which graph is correctly labelled?

a)
b)
c)
d)
69.

The graph shows the variation of displacement y with distance x along a progressive wave at one instant in time. What is the phase difference between points P and Q on the wave?

a)

π2rad\frac{\pi}{2}rad

b)

3π2rad\frac{3\pi}{2}rad

c)

3π rad3\pi\ rad

d)

7π2rad\frac{7\pi}{2}rad

70.

A sound wave passes through air.

The diagram shows the positions of the molecules of the air at one instant.

Which distance is equal to the wavelength of the wave?

a)

PQ

b)

PS

c)

QR

d)

QS

71.

A sound has an intensity of 1.0 x 10-4 W/m2 at a distance of 2.0 m from the sound source. What is the intensity at a distance of 4.0 m from the sound source? (Take π = 3)

a)

1.0 x 10-4 W/m2

b)

1.5 x 10-4 W/m2

c)

2.5 x 10-4 W/m2

d)

1.5 x 10-5 W/m2

e)

2.5 x 10-5 W/m2

72.

At a distance of 3 m, the intensity of a sound will be .... the intensity it was at a distance of 1 m.

a)

one-ninth

b)

one-third

c)

the same

d)

3 times

e)

9 times

73.

Calculate the intensity of the sound waves from a car stereo at a distance of 50 cm when the sound has power output of 12 W! (Take π = 3)

a)

0.0004 W/m2

b)

0.02 W/m2

c)

45 W/m2

d)

2 W/m2

e)

4 W/m2

74.

Ocean waves crash on the beach at a velocity of 3.5 m/s. If the distance between the crests of each wave is 4 m, find the frequency of the waves.

a)

0.88 Hz

b)

1.14 Hz

c)

0.0088 Hz

d)

14.0 Hz

75.

What is the velocity of a wave having a frequency of 25 Hz and a wavelength of 10 m?

a)

250 m/s

b)

2.5 m/s

c)

35 m/s

d)

0.4 m/s

76.

Calculate the intensity of the sound waves from an electric guitar’s amplifier at a

distance of 5.0 m when its power output is equal to each of the following values:

a. 0.25 W

intensity=p4πr2intensity=\frac{p}{4\pi r^2}

a)

7.0 x 10−4 W/m2

b)

8.0 x 10−4 W/m2

c)

9.0 x 10−4 W/m2

d)

8.8 x 10−4 W/m2

77.

How much power is radiated as sound from a band whose intensity is

1.6 × 10−3 W/m2 at a distance of 15 m?

intensity=p4πr2intensity=\frac{p}{4\pi r^2}

a)

4.5 W

b)

4.0 W

c)

5.0 W

d)

4.3 W

78.

How can wavelength be measured?

a)

Crest to crest

b)

Trough to trough

c)

Wavelength to wavelength

d)

All of the above

79.

A progressive radio wave in a vacuum has a frequency of 75 MHz. What is the phase difference between two points on the wave that are 50 cm apart from each

other?

a)

23 degrees

b)

45 degrees

c)

90 degrees

d)

180 degrees

80.

A displacement-time graph for a transverse wave is shown in the diagram.

The phase difference between X and Y can be expressed as nπ.

What is the value of n?

a)

3.0

b)

1.5

c)

2.5

d)

6.0

81.

teo sound waves have frequencies of 250 Hz and 300 Hz. The speed of sound is 340 m/s, What is the difference between the wavelenghts of the two waves?

a)

0.23 m

b)

1.1 m

c)

1.4 m

d)

6.8 m

82.

The two waves shown come from a source where they were initially coherent. The path difference could be

a)

⅓ λ

b)

½ λ

c)

¼ λ

d)

λ

e)

It is not possible to answer this question without additional information

83.

The diagram shows a displacement-time graph for a progressive wave.

a)

Amplitude: 5 mm; Frequency: 40 Hz

b)

Amplitude: 5 mm; Frequency: 50 Hz

c)

Amplitude: 10 mm; Frequency: 40 Hz

d)

Amplitude: 10 mm; Frequency: 50 Hz

84.

Two waves E and G are shown. The waves have the same speed.

Which statement is correct?

a)

Wave E has a greater amplitude than wave G.

b)

Wave E has a greater intensity than wave G.

c)

Wave E has a smaller frequency than wave G.

d)

Wave E has a smaller wavelength than wave G.

85.

What is the amplitude of this wave?

a)

3cm

b)

-3cm

c)

6cm

d)

4cm

86.

What is the wavelength of this wave?

a)

3cm

b)

10cm

c)

4cm

d)

8cm

87.

The graph shows the variation with time of the displacement of two separate waves X and Y.

Wave X has frequency f and amplitude A. What is the frequency and what is the amplitude of wave Y?

a)

frequency 1/2 f and amplitude 1/2 A

b)

frequency 1/2 f and amplitude 2A

c)

frequency 2f and amplitude 1/2 A

d)

frequency 2f and amplitude 2A

88.

A wave of frequency 15 Hz travels at 24 m/s through a medium. What is the phase difference between two points 2.0 m apart?

a)

There is no phase difference.

b)

They are out of phase by a quarter of a cycle.

c)

They are out of phase by half a cycle.

d)

They are out of phase by 0.80 of a cycle.

89.

How could you make this wave louder?

a)

keep the amplitude to 4 cm

b)

decrease the amplitude to 3 cm

c)

increase the frequency of this wave

d)

increase the amplitude to 5 cm

90.

Which wave has the greatest amplitude?

a)

C

b)

D

c)

E

91.

The speed of sound in steel is 6000ms–1. The wavelength of an ultrasound wave of frequency 50 kHz travelling through a steel girder is...

a)

0.0083 m

b)

0.12 m

c)

8.3 m

d)

120 m

92.

A cathode ray oscilloscope can be used to show how the displacement of a wave varies with time. Each square in the horizontal direction represents 5.00 ms.


The frequency of the wave is...

a)

25 Hz

b)

50 Hz

c)

250 Hz

d)

500 Hz

93.

Which of the points A to D, marked on the graph, has a phase difference of 270° with point X?

a)

A

b)

B

c)

C

d)

D

94.

Consider a sinusoidal wave travelling in the positive x direction. What is the phase difference between the two points shown in the diagram below?

a)

a) 0

b)

b) π

c)

c) π/2

d)

d) 2π

95.

The amplitude of a wave was tripled, how many times did the energy transferred increase?

a)

2 times

b)

4 times

c)

9 times

d)

16 times

96.

What is the amplitude of the wave in the diagram below?

a)

0.030 m

b)

0.040 m

c)

0.050 m

d)

0.060 m

97.

What are the amplitude and frequency of the wave?

a)

amplitude = 5mm; frequency = 40 Hz

b)

amplitude = 5mm; frequency = 50 Hz

c)

amplitude = 10mm; frequency = 40 Hz

d)

amplitude = 10mm; frequency = 50 Hz

98.
a)

150o

b)

220o

c)

260o

d)

330o

99.

What is the phase difference between X and Y?

a)

45o

b)

135o

c)

180o

d)

270o

100.

High-frequency sound waves with frequency 2.0 MHz travel with a speed of 2.0 kms-1 through a liquid.


What is the shortest distance between a compression and a rarefaction (expansion) in the liquid?

a)

0.5mm

b)

1.0mm

c)

5.0mm

d)

10.0mm

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