WorksheetsSOUND 9 TH CLASS
Total questions: 16
Worksheet time: 17mins
Name
Class
Date
1.
Sound waves are what kind of wave?
a)
Longitudinal
b)
Transverse
c)
Surface
d)
Electromagnetic
2.
If you want to change the pitch of a sound, you have to change the ___
a)
frequency
b)
amplitude
c)
speed
d)
volume
3.
The speed of a sound wave depends on
a)
the frequency
b)
the medium
c)
both air temperature and medium
d)
the air temperature
4.
What unit is the intensity of sound measured in?
a)
decibels (dB)
b)
Hertz (Hz)
c)
meters per second (m/s)
d)
meters
5.
A part in a longitudinal wave where the particles are spread apart
a)
compression
b)
rarefaction
c)
crest
d)
trough
6.
You and your father inspect an empty house with the hopes of buying it. You walk through the rooms talking to one another, and you notice that your voices and footsteps are echoing in the big, empty house. What causes the echo?
a)
sound
waves reflecting off smooth, flat surfaces throughout the house
b)
sound
waves moving around the large rooms
c)
sound
waves moving slowly through air
d)
sound
waves refracting around corners in the empty rooms
7.
When a sound is louder what measurement gets bigger?
a)
Frequency
b)
Amplitude
c)
Wavelength
d)
Crest
8.
Sound waves travel the fastest through _______.
a)
Gases
b)
Solids
c)
Liquids
d)
Plasma
9.
As the temperature of a medium increases, the sound waves will travel ____________.
a)
Faster
b)
Slower
c)
As the same speed
10.
The amount of energy a wave carries is the _________.
a)
Amplitude
b)
Height
c)
Loudness
d)
Volume
11.
Sound is produced by -----
a)
Heat energy
b)
Low temperatures
c)
Vibrations
d)
Friction
12.
The unit for measuring frequency is the ---
a)
Joule
b)
Hertz
c)
Gram
d)
Newton
13.
Sound waves that are beyond the range of human ear are known as ----
a)
Infrasonic waves
b)
Ultrasonic waves
14.
Sound cannot travel through which of the following?
a)
empty space
b)
gas
c)
liquid
d)
solid
15.
You pluck a guitar string. It makes a sound. What causes the sound?
a)
inertia
b)
gravitational pull
c)
vibration
d)
pitch
16.
__________________________ is the to and fro or back-and-forth motion of an object.
a)
vibration
b)
sound wave
c)
frequency
d)
amplitude
100 %
