Choose the letter of the best answer. Write your answer on the line before the number.

1. Sound travels in a form of
a) transverse waves
c) longitudinal waves
b) circular waves
d) mechanical waves

2. Frequency is related to
a) amplitude
c) interference
b) pitch
d) speed

3. The quality of a sound depends upon its
a) natural frequency
c) amplitude
b) overtones
d) fundamental pitch

4. The science of sound is called
a) acoustics
c) overtones
b) sonar
d) resonance

5. Vibrations from the eardrum enter the
c) middle ear
a) outer ear
b) inner ear
d) brain

6. Loud noises that continue for a prolonged period can cause
c) nervous tension
CaUse
a ear injury
d) all of the above
b) high blood pressure

7. Which of the following must change when pitch gets higher
cintensity
a) amplitude
d) wavelength
b) frequency
of a sound wave is defined as the distance between

8. The
points that have the same density.
c longitudinal
a) frequency
b) wavelength
d) vibration

9. The perception of highness or lowness of a sound which depends on
trequency ot sound waves is
a) vibration
c) pitch
b intensity
d) frequency

10. The
that pass in a given point in a second.
of a sound wave is defined as the number of raretachions
a) longitudinal
cvibration
b) wavelength
d) frequency​