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Worksheets8th class sound topic
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
Choose the frequency range we can hear.
a)
20Hz to 1000Hz
b)
20Hz to 2000Hz
c)
20Hz to 20000Hz
d)
All frequencies
2.
A student holds two vibrating objects. Object A is vibrating faster than object B. Which statement is true?
a)
A is louder than B
b)
B is louder than A
c)
A will have a higher pitch than B
d)
B will have a higher pitch than A
3.
The volume of a sound is measured in units called ________
a)
decibels
b)
liters
c)
sound waves
4.
If a sound has a high amplitude then it also has a ____________!!!
a)
fast echo
b)
slow pitch
c)
high volume
d)
low volume
5.
High pitch sounds are caused by a ______ vibration
a)
fast
b)
slow
c)
hard
d)
soft
6.
Which of the following would you hear as a low pitched sound?
a)
sound wave with a frequency of 50 Hz
b)
sound wave with frequency of 10,000 Hz
c)
sound wave with an intensity of 10 dB
d)
sound wave with an intensity of 100 dB
7.
Sound does not travel in space because
a)
Space is too far away.
b)
There is no matter in space.
c)
Space is the final frontier
d)
Space has planets.
8.
What is frequency?
a)
the number of vibrations per second
b)
how high or low a sound is
c)
the loudness or softness of a sound
d)
the back and forth movement of matter
9.
Sound is caused by....
a)
molecules
b)
vibrations
c)
people
d)
space
10.
The sound of an object has 120 vibrations per minute. What is the frequency and time period?
a)
60 Hz & 0.167 seconds
b)
3 Hz & 0.33 seconds
c)
5 Hz & 0.2 seconds
d)
2 Hz & 0.5 seconds
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