Lecture 11) choose the correct answer

When a wave travels through a medium ...
a) energy is transmitted in a sinusoidal manner
b) particles move from place to place
c) energy is transferred at a constant speed
d) none of the above
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Terms in this set (11)
When a wave travels through a medium ...
a) energy is transmitted in a sinusoidal manner
b) particles move from place to place
c) energy is transferred at a constant speed
d) none of the above
energy is transferred at a constant speed
When sound travels in air, the air molecules ...
a) do not change their position
b) oscillate along the direction of wave propagation
c) oscillate randomly
d) vibrate perpendicularly to the direction of the wave travel
oscillate along the direction of wave propagation
The velocity , frequency and wavelength are related by
a ) v = λf
b ) v = λ/f
c ) λ = v/f
d) f = λ/v
lambda = v/f
The distance between a given compression and the next rarefaction of a longitudinal wave equals ...
a) λ
b) 2λ
c) λ/2
d) λ/4
lambda/2
The frequency not audible to the human car is ...
a) 30 Hz
b) 30 000 Hz
c) 300 Hz
d) 3000 Hz
30 000 Hz
The speed of sound wave through a given medium depends on the
a) frequency
b) wavelength
c) medium
d) amplitude
medium
Both sound and light waves ...
a) are longitudinal waves
b) propagate through a vacuum
c) have similar wavelengths
d) obey the laws of reflection and refraction
obey the laws of reflection and refraction
The mechanical sound vibrations inside the inner ear are converted into electrical signals by the ...
a) ossicles
b) cochlea
c) eardrum
d) pinna
cochlea
Mechanical waves carry from place to place
a) energy only
b) matter only
c) both matter and energy
d) neither energy nor matter
both matter and energy
Let us consider two musical notes with the same pitch but different quality. This is due to the fact that the notes are made up of sound waves with different
a) speeds
b) intensities
c) frequencies
d) none of the above
none of the above
Standing waves occur by the superposition of two waves with a) the same amplitude and direction of travel, but different frequencies b) the same amplitude, frequency and direction of travel c) the same amplitude and frequency and opposite direction of travel d) the same amplitude, different frequencies and opposite direction of travelthe same amplitude and frequency and opposite direction of travel