Question 1

The frequency of a simple pendulum depends on

Accepted Answer

A)  its mass.
B)  its length.
C)  the acceleration due to gravity.
D)  all of these
E)  two of these

Question 2

If you double the frequency of a vibrating object,its period

Accepted Answer

A)  doubles.
B)  halves.
C)  is quartered.

Question 3

As a train of water waves goes by,a piece of cork floating on the water bobs up and down one complete cycle each second.The waves are 2 meters long.What is the speed of the wave?

Accepted Answer

A)  0) 25 m/s
B)  0) 50 m/s
C)  1) 0 m/s
D)  2 m/s
E)  4 m/s

Question 4

Some of a wave's energy dissipates as heat.In time,this will reduce the wave's

Accepted Answer

A)  speed.
B)  wavelength.
C)  amplitude.
D)  frequency.
E)  period.

Question 5

The source of a sonic boom

Accepted Answer

A)  must itself be an emitter of sound.
B)  may or may not be an emitter of sound.
C)  is not itself an emitter of sound.

Question 6

Use the following figure to answer the question: 
-A weight suspended from a spring bobs up and down over a distance of 1 meter in two seconds.Its frequency is

Accepted Answer

A)  0) 5 hertz.
B)  1 hertz.
C)  2 hertz.
D)  None of the above choices are correct.

Question 7

Use the following figure to answer the question: 
-You dip your finger repeatedly into water and make waves.If you dip your finger more frequently,the wavelength of the waves

Accepted Answer

A)  shortens.
B)  lengthens.
C)  stays the same.

Question 8

A wave barrier is produced when a wave source moves

Accepted Answer

A)  nearly as fast as the waves it produces.
B)  as fast as the waves it produces.
C)  faster than the waves it produces.

Question 9

A pendulum clock at high altitudes runs

Accepted Answer

A)  fast.
B)  slow.
C)  normally as it does at sea level.

Question 10

The vibrations of a longitudinal wave move in a direction

Accepted Answer

A)  along the direction of wave travel.
B)  at right angles to the direction of wave travel.
C)  that changes with speed.

Question 11

A standing wave occurs when

Accepted Answer

A)  two waves overlap.
B)  a wave reflects upon itself.
C)  the speed of the wave is zero or near zero.
D)  the amplitude of a wave exceeds its wavelength.

Question 12

An observer on the ground hears a sonic boom which is created by an airplane flying at a speed

Accepted Answer

A)  just below the speed of sound.
B)  equal to the speed of sound.
C)  greater than the speed of sound.
D)  All of the above choices are true.
E)  None of the above choices are true.

Question 13

During a single period,the distance traveled by a wave is

Accepted Answer

A)  one-half wavelength.
B)  one wavelength.
C)  two wavelengths.

Question 14

A floating leaf oscillates up and down two complete cycles each second as a water wave passes by.What is the wave's frequency?

Accepted Answer

A)  0) 5 hertz
B)  1 hertz
C)  2 hertz
D)  3 hertz
E)  6 hertz

Question 15

The Doppler effect is characteristic of

Accepted Answer

A)  water waves.
B)  sound waves.
C)  light waves.
D)  all of the above choices
E)  none of the above choices

Question 16

An object that completes 20 vibrations in 10 seconds has a frequency of

Accepted Answer

A)  0) 5 hertz.
B)  1 hertz.
C)  2 hertz.
D)  200 hertz.

Question 17

A jet traveling at 1500 km/hr passes between observers A and B.In a short time a sonic boom will be heard by

Accepted Answer

A)  observer A,observer B,and the pilot of the jet.
B)  observer A only.
C)  observer B only.
D)  observers A and B,but not the pilot.

Question 18

If the frequency of a certain wave is 10 hertz,its period is

Accepted Answer

A)  0) 1 second.
B)  10 seconds.
C)  100 seconds.
D)  None of the above choices are correct.

Exam 19: Vibrations and Waves

Some of a wave's energy dissipates as heat.In time,this will reduce the wave's

Correct Answer
verified

An object that completes 20 vibrations in 10 seconds has a frequency of

Correct Answer
verified

The source of a sonic boom

Correct Answer
verified

If the frequency of a certain wave is 10 hertz,its period is

Correct Answer
verified

As a train of water waves goes by,a piece of cork floating on the water bobs up and down one complete cycle each second.The waves are 2 meters long.What is the speed of the wave?

Correct Answer
verified

If you double the frequency of a vibrating object,its period

Correct Answer
verified

Use the following figure to answer the question: -A weight suspended from a spring bobs up and down over a distance of 1 meter in two seconds.Its frequency is

Correct Answer
verified

During a single period,the distance traveled by a wave is

Correct Answer
verified

The frequency of a simple pendulum depends on

Correct Answer
verified

A jet traveling at 1500 km/hr passes between observers A and B.In a short time a sonic boom will be heard by

Correct Answer
verified

An observer on the ground hears a sonic boom which is created by an airplane flying at a speed

Correct Answer
verified

Use the following figure to answer the question: -You dip your finger repeatedly into water and make waves.If you dip your finger more frequently,the wavelength of the waves

Correct Answer
verified

A wave barrier is produced when a wave source moves

Correct Answer
verified

A pendulum clock at high altitudes runs

Correct Answer
verified

The Doppler effect is characteristic of

Correct Answer
verified

A standing wave occurs when

Correct Answer
verified

A floating leaf oscillates up and down two complete cycles each second as a water wave passes by.What is the wave's frequency?

Correct Answer
verified

The vibrations of a longitudinal wave move in a direction

Correct Answer
verified

Exam 19: Vibrations and Waves

Some of a wave's energy dissipates as heat.In time,this will reduce the wave's

Correct AnswerverifiedShow Answer

An object that completes 20 vibrations in 10 seconds has a frequency of

Correct AnswerverifiedShow Answer

The source of a sonic boom

Correct AnswerverifiedShow Answer

If the frequency of a certain wave is 10 hertz,its period is

Correct AnswerverifiedShow Answer

As a train of water waves goes by,a piece of cork floating on the water bobs up and down one complete cycle each second.The waves are 2 meters long.What is the speed of the wave?

Correct AnswerverifiedShow Answer

If you double the frequency of a vibrating object,its period

Correct AnswerverifiedShow Answer

Use the following figure to answer the question: -A weight suspended from a spring bobs up and down over a distance of 1 meter in two seconds.Its frequency is

Correct AnswerverifiedShow Answer

During a single period,the distance traveled by a wave is

Correct AnswerverifiedShow Answer

The frequency of a simple pendulum depends on

Correct AnswerverifiedShow Answer

A jet traveling at 1500 km/hr passes between observers A and B.In a short time a sonic boom will be heard by

Correct AnswerverifiedShow Answer

An observer on the ground hears a sonic boom which is created by an airplane flying at a speed

Correct AnswerverifiedShow Answer

Use the following figure to answer the question: -You dip your finger repeatedly into water and make waves.If you dip your finger more frequently,the wavelength of the waves

Correct AnswerverifiedShow Answer

A wave barrier is produced when a wave source moves

Correct AnswerverifiedShow Answer

A pendulum clock at high altitudes runs

Correct AnswerverifiedShow Answer

The Doppler effect is characteristic of

Correct AnswerverifiedShow Answer

A standing wave occurs when

Correct AnswerverifiedShow Answer

A floating leaf oscillates up and down two complete cycles each second as a water wave passes by.What is the wave's frequency?

Correct AnswerverifiedShow Answer

The vibrations of a longitudinal wave move in a direction

Correct AnswerverifiedShow Answer

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