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Waves (Mechanical waves and Sound)

Total questions: 35

Worksheet time: 14mins

Name
Class
Date
1.

Longitudinal waves are ______.

a)

Parallel

b)

Perpendicular

2.

Transverse waves are ___.

a)

Parallel

b)

Perpendicular

3.

The highest point on a wave is:

a)

the crest

b)

the trough

c)

the top

d)

the coast

4.
What kind of wave is pictured below?
a)
compressional wave
b)
transverse wave
c)
sound wave
d)
mechanical wave
5.

You can't hear sounds in outer space because there is no

a)

medium

b)

light

c)

energy

d)

heat

6.
Waves move ___ through vibrations
a)
Energy
b)
Matter
c)
Mass
d)
Weight
7.
In longitudinal waves, the parts where the coils are spread apart are called what?
a)
rarefactions
b)
compressions
c)
mechanicals
d)
longitudes
8.
Which travels faster, light or sound?
a)
light
b)
sound
9.
What type of wave move a slinky back and forth?
a)
longitudinal
b)
transverse
10.
What kind of wave is pictured?
a)
Transverse
b)
Longitudinal
c)
surface
d)
none of the above
11.

A wave that can travel through matter and empty space is a:

a)

electromagnetic wave

b)

longitudinal wave

c)

transverse wave

12.

Which are properties of a mechanical wave?

a)

can be longitudinal or transverse

b)

can move through space

c)

must have matter to move

d)

carries energy

13.
If there is no wave, the particles would be at the _____________________.
a)
wavelength
b)
resting point
c)
trough
d)
beach
14.
When wavelength increases, what happens to the frequency?
a)
it increases
b)
it decreases
c)
it stays the same
15.
What is the speed of a wave that has a wavelength of 2 and a frequency of 2.5?
a)
2.5 m/s
b)
5 m/s
c)
4.5 m/s
d)
6 m/s
16.
Which wave has a greater frequency?
a)
wave B
b)
wave C
17.

The wave speed of a wave in terms of its wavelength λ and period, T is:

a)

v=λTv=\lambda T

b)

v=λT2v=\lambda T^2

c)

v=λTv=\frac{\lambda}{T}

d)

v=Tλv=\frac{T}{\lambda}

18.

The equation of a progressive wave is given by y = 0.1 sin (3x + 10t) where y and x are in meters and t in second. The direction of the wave is

a)

leftwards

b)

rightwards

c)

upwards

d)

downwards

19.

Two progressive waves of the same amplitude and frequency travelling in opposite directions along the same path in the same medium produce:

a)

beats

b)

resonance

c)

standing waves

d)

interference

20.

Which property of wave motion distinguish a progressive wave from standing wave:

a)

amplitude

b)

frequency of vibration

c)

propagation of energy

d)

direction of vibration

21.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
22.

The units for frequency are measured in _____________.

a)

hertz

b)

seconds

c)

m/s

d)

m

23.
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.
24.
A jet fighter approaches, passes low overhead, and flies away. How does the pitch of its engine when it is flying away compare to the pitch when it was approaching you?
a)
louder
b)
lower
c)
higher
d)
unchanged
25.
The phenomenon of a wave bouncing off a surface is called...
a)
refraction
b)
reflection
c)
rarefaction
d)
interference
26.
Multiples of a fundamental in a sound are called...
a)
fundamental frequencies
b)
reverberations
c)
harmonics
d)
acoustics
27.
When a violin string responds to another violin string, we call that...
a)
acoustics
b)
reverberations
c)
resonance
d)
harmonics
28.
As the fire truck approached Mary, the pitch of the siren got higher. Once the fire truck passed and moved away, the siren's pitch got lower. This change in pitch is because of a change in the sound wave's
a)
concussion. 
b)
amplitude. 
c)
reflection.
d)
frequency. 
29.
When a sound is louder what measurement gets bigger?
a)
Frequency 
b)
Amplitude 
c)
Wavelength 
d)
Crest
30.
The speed of a sound wave depends on
a)
the frequency
b)
the medium
c)
both air temperature and medium
d)
the air temperature
31.
Sound waves are what kind of wave?
a)
Longitudinal
b)
Transverse
c)
Surface
d)
Electromagnetic
32.
As a sound source approaches and then moves past a stationary observer, the observer will hear
a)
a steady rise in pitch
b)
a sudden drop in pitch
c)
a drop in pitch, then a rise in pitch
d)
a rise in pitch, then a drop in pitch
33.
Why is sound able to travel faster through a solid than a gas?
a)
Gas molecules are packed tightly.
b)
Sound does not travel faster through a solid than a gas.
c)
Solid molecules are packed tightly.
d)
Gas molecules move slowly.
34.
Any point where any amplitude occurs on a standing wave is called...
a)
antinode
b)
node
c)
crest
d)
trough
35.
Two waves combining to form a wave with a larger amplitude results in
a)
constructive interference
b)
destructive interference

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