Physics 4th Q Exam-Waves Question Preview (ID: 56485)


Waves Questions. TEACHERS: click here for quick copy question ID numbers.

The high point of a wave is called
a) crest
b) trough
c) amplitude
d) wavelength

The low point of a wave is called
a) crest
b) trough
c) amplitude
d) wavelength

The length of a wave until it repeats itself
a) crest
b) trough
c) wavelength
d) amplitude

The displacement of the wave from rest. The height of the wave
a) crest
b) trough
c) wavelength
d) amplitude

A wave that vibrates parallel to motion is a
a) longitudinal wave
b) transverse wave
c) electromagnetic wave
d) gamma ray

Sound waves are
a) longitudinal waves
b) transverse waves
c) gamma rays
d) x-rays

A change in apparent pitch as a sound source moves relative to an observer is called
a) Darwin's effect
b) Einstein's theory of relativity
c) Doppler effect
d) Longitudinal waves

find the wave period with a frequency of 5hz
a) 0.5s
b) 2.0s
c) 0.2s
d) 5.0s

wavelength is measured in
a) hertz
b) m/s
c) meters
d) decibels

If a sound source moves towards you, what happens to the perceived pitch?
a) it sounds higher
b) it sounds lower
c) it remains the same
d) it goes away

what is the symbol for wavelength?
a) f
b) v
c) T
d) lambda

a wave with an amplitude of 1m meets a wave with an amplitude of 0.9m in destructive interference. What is the new amplitude?
a) 0.10m
b) 1.90m
c) 2m
d) 0m

A wave with an amplitude of 2.0m meets a wave with an amplitude of 2.0m in constructive interference. What is the resultant amplitude?
a) 0m
b) 4.0m
c) 2.0m
d) 6.0m

According to principle of superposition, when 2 waves meet, the resultant amplitude is _____of the 2 waves
a) less than
b) greater than
c) the sum of
d) no different than

A piano emits a frequency of 4200 Hz. What is the wavelength of the sound wave produced by this instrument? Use the speed of sound in air as 343m/s
a) 0.082m
b) 12m
c) 4500m
d) 320m

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