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Bolvin - Chapter 25
waves review
Question | Answer |
---|---|
What is the time it takes to make one complete back and forth vibration called? | period |
What is the only thing the period of a pendulum depends on? | length |
What is the back and forth motion of a swinging pendulum called? | simple harmonic motion |
The highest point in a wave is called a ____. | crest |
The lowest point in a wave is called a ____. | trough |
The distance from the midpoint of a wave to its crest or trough is called the ____. | amplitude |
What is distance between the top of one wave crest to the top of the next wave crest called? | wavelength |
A ___ is the unit of frequency. | hertz |
How often a vibration occurs is called its ____> | frequency |
What is the relationship between the period of a wave and the frequency of the wave? | indirectly proportional |
What is it that you calculate by multiplying the frequency of a wave by the wavelength of the wave? | wave speed |
Which type of wave has the motion of the medium moving at right angles to the direction the wave travels? | transverse |
Which type of wave has the motion of the medium moving in the same direction as the wave travels? | longitudinal |
Sound is an example of this type of wave. Which type is it? | longitudinal |
______ is when 2 or more vibrations overlap each other. | Interference |
What is the name given to two waves that have their crests and their troughs overlapping each other? | constructive interference |
What is the name given to two waves in which the crests of one overlaps the troughs of the other? | destructive interference |
The ______ is the apparent change in frequency due to the motion of the source or the motion of the receiver. | Doppler effect |
As the frequency of a sound is increased, does the wavelength increase, decrease or stay the same? | decrease |