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Q 1/13
Score 0
State whether the statement is true or false: Sounds are produced by sources which vibrate.
30
False
True
Q 2/13
Score 0
State whether the statement is true or false: Sounds are carried by air which moves from the source to our ears.
30
False
True
13 questions
Q.
State whether the statement is true or false: Sounds are produced by sources which vibrate.
1
30 sec
Q.
State whether the statement is true or false: Sounds are carried by air which moves from the source to our ears.
2
30 sec
Q.
State whether the statement is true or false: The frequency of a sound is the number of vibrations each second.
3
30 sec
Q.
State whether the statement is true or false: A sound with a higher frequency is louder than one with a lower frequency.
4
30 sec
Q.
State whether the statement is true or false: Sound can travel through solids, liquids and gases.
5
30 sec
Q.
State whether the statement is true or false: Sound can travel through a vacuum.
6
30 sec
Q.
State whether the statement is true or false: Sound waves travelling down the ear canal push on the cochlea.
7
30 sec
Q.
Loudspeaker A vibrates 200 times each second. Loudspeaker B vibrates 400 times each second. What is the frequency of the sound produced by loudspeaker A? Give the value and the unit.
8
30 sec
Q.
Loudspeaker A vibrates 200 times each second. Loudspeaker B vibrates 400 times each second. Which loudspeaker produces the note with the lower pitch?
9
30 sec
Q.
A ruler vibrates 70 times in 20 seconds. What is the frequency of its vibration?
10
30 sec
Q.
The trace below represents a sound wave which is changing. State whether the frequency of the wave is increasing, decreasing or staying the same.
11
30 sec
Q.
The trace below represents a sound wave which is changing. State whether the pitch of the sound is increasing, decreasing or staying the same.
12
30 sec
Q.
The trace below represents a sound wave which is changing. State whether the loudness of the wave is increasing, decreasing or staying the same.
