1.)An ambulance has its siren on. What direction is the ambulance moving relative to you if the siren is decreasing in pitch?
A
behind you
B
maintaining the same position
C
toward you
D
away from you
2.) Loud sounds can affect your hearing by damaging the hairs and nerve cells in the cochlea.
A
True
B
False
3.) A large explosion can damage a person's hearing. What causes this damage?
A
The explosion triggers smaller explosions inside the ear.
B
Compression waves from the explosion cause vibrations that damage the ear.
C
Transverse waves from the explosion cause vibrations that damage the ear.
D
Heat from the explosion burns the eardrum.
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