Waves Quiz True or False

1.	Which of the following is NOT an example of simple harmonic motion? -> a block oscillating on a spring True False
2.	A wave that has an amplitude of 10 cm has a distance between its troughs and crests of: -> 5 cm True False
3.	A spring/block system in simple harmonic motion has the block replaced by one with half the mass. The motion's period is multiplied by which of the following as a result? -> √2 True False
4.	A 2 kg block on attached to a spring with a stiffness of 30 N/m is stretched 5 cm at t = 0 s and then released. How much potential energy does the block has at t = 1 s? -> 21 mJ True False
5.	A guitar player strums his guitar and plays an A at 440 Hz. How far away from the guitar does the sound wave travel in one period of oscillation? -> 1.55 m True False
6.	Which of the following is an example of a longitudinal wave? -> sound True False
7.	What is the wavelength of this wave (arbitrary units)? -> 4 True False
8.	Which of the following is an example of a standing wave? -> someone jumping rope True False
9.	What is the phase of a spring/block system that starts at t = 0 s at half the full wave amplitude? -> 0 rad True False
10.	A toy boat moving across a lake makes ripples in the water, expanding in all directions from the boat. If the boat moves at 3 m/s, how fast must the ripples move in order to appear at 2/3 their original frequency from behind the boat? -> 6.0 m/s True False

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