MCQ 25

A wiggle in time is a

•   wave.

• vibration

• both of these

• neither or these

A wiggle in both space and time is a

•   wave.

•   vibration.

•   both of these

•   neither of these

The pendulum with the greatest frequency is one with the

•   shortest length.

•   longest length.

•   neither of these

If a child swinging to and fro on a playground swing stands up, her time for a to-and-fro swing is

•   unchanged.

•   longer.

• shorter

A pendulum clock at high altitudes runs

•   normally as it does at sea level.

• fast

•   slow.

The source of all waves is

•   energy.

•   a force of some kind.

•   something that vibrates.

•   all of the above

•   none of the above

Both a transverse wave and a longitudinal wave have

•   wavelength.

•   frequency.

•   speed.

• amplitude

•   all of the above

The amplitude of a wave is 1 meter. The crest-to-trough distance of the wave is

•   2 m.

•   1 m.

•   0.5 m.

•   none of the above

A fishing-boat captain returns to port saying, "It's rough out there with waves that are 4 meters high." He is probably talking of waves of amplitude

•   4 m.

•   1 m.

•   3 m.

•   2 m.

The frequency of a simple pendulum does NOT depend on

•   its mass.

•   the acceleration due to gravity.

•   its length.

•   all of the above

•   none of the above