Chapter 19

1) A wiggle in time is a A) vibration. B) wave. C) both of these D) neither of these

A

13) The frequency of a simple pendulum does NOT depend on A) its mass. B) its length. C) the acceleration due to gravity. D) all of the above E) none of the above

A

24) Repeatedly dipping your fingers into water produces waves. Increasing the frequency of dipping produces waves that are A) shorter. B) longer. C) the same.

A

28) The compressions and rarefactions in a longitudinal wave travel in A) the same direction. B) opposite directions. C) a vacuum.

A

29) Which of these is a longitudinal wave? A) sound B) light C) radio D) all of the above E) none of the above

A

31) The vibrations of a longitudinal wave move A) along the direction of wave travel. B) at right angles to the direction of wave travel. C) that changes with speed.

A

4) The pendulum with the greatest frequency is one with the A) shortest length. B) longest length. C) neither of these

A

46) A node is a position of A) minimum amplitude. B) maximum amplitude. C) half amplitude.

A

7) The stride of a horse would be quicker if more mass in its legs were concentrated A) in the upper part, nearer the horse's body. B) towards its feet. C) halfway up its legs. D) uniformly all along its legs. E) none of the above

A

8) When an elevator is accelerating upward, the frequency of a pendulum inside A) increases. B) decreases. C) doesn't change.

A

9) The source of all waves is A) something that vibrates. B) energy. C) a force of some kind. D) all of the above E) none of the above

A

2) A wiggle in both space and time is a A) vibration. B) wave. C) both of these D) neither of these

B

27) All waves have in common a A) pattern. B) vibrating source. C) variable regions of high and low pressure. D) none of the above

B

30) The vibrations of a transverse wave move A) along the direction of wave travel. B) at right angles to the direction of wave travel. C) that changes with speed.

B

32) Which of these is a transverse wave? A) a Slinky shaken to and fro. B) a radio wave C) a sound wave D) all of the above E) none of the above

B

5) If a child swinging to and fro on a playground swing stands up, her time for a to-and-fro swing is A) longer. B) shorter. C) unchanged.

B

6) A pendulum clock at high altitudes runs A) fast. B) slow. C) normally as it does at sea level.

B

23) Some of a wave's energy dissipates as heat. In time, this will reduce the wave's A) speed. B) wavelength. C) amplitude. D) frequency. E) period.

C

33) Which equation is correct for wave speed? A) wave speed = frequency x wavelength B) wave speed = (1/period) x wavelength C) both of these D) neither of these

C

42) Interference is a property of A) sound waves. B) water waves. C) light waves. D) all of the above E) none of the above

D

43) To say that one wave is out of phase with another is to say that the waves are A) of different amplitudes. B) of different frequencies. C) of different wavelengths. D) out of step. E) all of the above

D

44) Wave interference occurs for A) sound waves. B) light waves. C) water waves. D) all of the above E) none of the above

D

45) A standing wave is likely produced when 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.

D

10) Both a transverse wave and a longitudinal wave have A) amplitude. B) frequency. C) wavelength. D) speed. E) all of the above

E

3) Which of these is affected by mass? A) a freely-falling object B) an object sliding down a friction-free plane C) a pendulum D) all of the above E) none of the above

E