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25 questions
Which wave in the diagram has the greatest wavelength?
1
2
3
4
which material does sound travel the fastest?
solid
liquid
gases
A person is standing still and listening to a siren sounding an alarm. The frequency of the sound is 500 Hz. The person begins running toward the sound at a rate of 20 m/s. The frequency of the sound the person hears will
decrease
remain the same
increase
change by 20 Hz.
The speed of a sound wave...
depends on amplitude
depends on the medium
depends on wavelength
none of the above
A(n) _____ is a good mathematical model for representing transverse waves.
tangent curve
exponential curve
parabolic curve
sine curve
The lowest pitch the average human can hear is about 20.0 Hz. If sound with this frequency travels through air about 300 m/s, What is its wavelength?
15
6000 m
15 m
6000
A student holds two vibrating objects. Object A is vibrating faster than object B. Which statement is true?
A is louder than B
B is louder than A
A will have a higher pitch than B
B will have a higher pitch than A
An object is attached to a vertical spring and bobs up and down between points A and B. Where is the object located when its kinetic energy is a maximum?
at either A or B
midway between A and B
one-third of the way between A and B
one-fourth of the way between A and B
An object attached to one end of a spring makes 20 complete vibrations in 10s. Its period is:
0.50 s
2 s
0.5 Hz
2 Hz
What property of the wave is represented by the letter "B"?
amplitude
crest
trough
wavelength
The number of wavelengths that pass a point each per second is:
frequency
period
longitudinal
transverse wave
An ideal spring with a constant of 200 N/m is acted upon by a 500 N force directed in the positive direction. What is the magnitude and direction of the displacement?
0.4 m
-0.4 m
2.5 m
-2.5 m
What is common with all electromagnetic and mechanical waves?
They travel at the same speed
They transfer energy
They are all longitudinal waves
They are all transverse waves
A student in a band notices that a drum vibrates when another instrument emits a certain frequency note. This phenomenon illustrates
reflection
refraction
resonance
doppler effect
Sound is an example of a
transverse wave
longitudinal wave
focal wave
electromagnetic wave
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