[1 ] An ideal harmonic oscillator A) has a single frequency. B) can only be made

ID: 1627973 • Letter: #

Question

[1] An ideal harmonic oscillator

A) has a single frequency.

B) can only be made to oscillate at its natural frequencies.

C) shows a set of frequencies which are multiples of the lowest one.

D) has a frequency which always depends on the mass.

E) may oscillate at a frequency independent of the restoring force when it is not being

driven.

[2] For standing waves on a string of length L,

A) the n’th mode of vibration has an additional full wavelength than the n-1st mode had.

B) increasing the tension on the string gives fewer antinodes for the same frequency.

C) both ends must be fixed (stationary).

D) the higher frequencies are not multiples of the fundamental when one end is free.

E) the nodes are the only places where the string is ever at zero displacement.

[3] Which of the following equals the wave speed?

A) B) fk C) k D) /k E) /f

[4] All observers in inertial reference frames (constant relative velocities) will agree on all of the following except:

A) the speed of light. B) the time order of events at distant locations.

C) what events occur. D) the masses of particles. E) proper lengths and times.

1. C) shows a set of frequencies which are multiples of the lowest one.

2. E) the nodes are the only places where the string is ever at zero displacement.

3. D) /k

4. A) the speed of light.

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