PHYSICS CHAPTER 14
WAVES AND VIBRATIONS
Review Game
The distance from the peak of a wave to the adjacent wave is
the _____.
a) amplitude
b) wavelength
Answer:
b) wavelength
The time it takes for a wave to complete one cycle is the
wave’s_____.
a) period
b) frequency
Answer:
a) period
What is the unit of force?
a) Newton
b) Newton-meter
Answer:
a) Newton
The number of times a wave cycle repeats each second is the
_____ of the wave.
a) period
b) frequency
Answer:
b) frequency
The zero position of a wave is the
a) equilibrium
b) trough
Answer:
a) equilibrium
The incident wave is the
a) source wave
b) reflected wave
Answer:
a) source wave
Any motion that repeats in a regular cycle is known as _____
motion.
a) simple harmonic
b) periodic
Answer:
b) periodic
In _____ waves, the vibrations are both perpendicular and
parallel to the direction the wave is traveling.
a) surface
b) longitudinal
Answer:
a) surface
Which is an example of reflection?
a) waves bending as they move into shallow water
b) an echo
Answer:
b) an echo
What is the unit of spring constant k?
a) N/m
b) kg∙m/s
Answer:
a) N/m
A spring bounces up and down once every 2 seconds. What is its
period?
a) 2 seconds
b) 0.5 second
Answer:
a) 2 seconds
_____ occurs when two or more waves move through a medium
at the same time.
a) interference
b) resonance
Answer:
a) interference
The rate of energy transfer for a particular wave is directly
proportional to the _____.
a) amplitude
b) square of the amplitude
Answer:
b) square of the amplitude
The bending of waves at the boundary of two different media is
known as _____.
a) refraction
b) reflection
Answer:
a) refraction
Waves transfer energy _______ transferring matter.
a) by
b) without
Answer:
b) without
The distance between two consecutive points in phase
a) amplitude
b) wavelength
Answer:
b) wavelength
A wave in which the vibration is at right angles to its direction of
motion
a) transverse
b) longitudinal
Answer:
a) transverse
The speed of a wave is equal to _____ times frequency.
a) period
b) wavelength
Answer:
b) wavelength
The number of cycles of a periodic wave per unit time
a) period
b) frequency
Answer:
b) frequency
The reciprocal of the frequency of a periodic wave is the _____.
a) period
b) wavelength
Answer:
a) period
A spring bounces up and down once every 2 seconds. What is its
frequency?
a) 2 Hz
b) 0.5 Hz
Answer:
b) 0.5 Hz
The change in direction of a wave when it passes obliquely into
another medium
a) refraction
b) diffraction
Answer:
a) refraction
Compression waves are _______ waves.
a) transverse
b) longitudinal
Answer:
b) longitudinal
The period of a wave is 10 seconds. What is its frequency?
a) 0.1 seconds
b) 0.1 Hz
Answer:
b) 0.1 Hz
The maximum distance that the crest rises above its rest
position.
a) amplitude
b) wavelength
Answer:
a) amplitude
The point of maximum displacement when two waves meet.
a) node
b) antinode
Answer:
b) antinode
The period of a pendulum depends on
a) mass
b) length of the pendulum
Answer:
b) length of the pendulum
Caused by the superposition of waves that have displacements
in opposite directions
a) constructive interference
b) destructive interference
Answer:
b) destructive interference
The particles in a standing wave that do not move
a) nodes
b) antinodes
Answer:
a) nodes
What are the units of frequency?
a) seconds
b) cycles per second
Answer:
b) cycles per second
Created when the period of a wave is equal to the time it takes
for the wave to travel to a fixed point and back
a) standing wave
b) transverse wave
Answer:
a) standing wave
The low points of a wave
a) crests
b) troughs
Answer:
b) troughs
Which waves have the longest wavelengths?
a) radio
b) gamma
Answer:
a) radio
A wave in which the vibration is parallel to the its direction of
motion
a) transverse
b) longitudinal
Answer:
b) longitudinal
What does the slope of the line on an F vs. x graph indicate?
a) work
b) spring constant
Answer:
b) spring constant
A line drawn perpendicular to the barrier
a) wave front
b) normal
Answer:
b) normal
What are the units of g?
a) m/s
b) m/s2
Answer:
b) m/s2
What are the units of period?
a) seconds
b) Hz
Answer:
a) seconds
What are the units of mass?
a) kg
b) N
Answer:
a) kg
The frequency of a wave depends on
a) the vibrating source
b) the medium it travel through
Answer:
a) the vibrating source
What are the units of λ?
a) meters
b) seconds
Answer:
a) meters
An example of dispersion is
a) looking at yourself in a mirror
b) white light through a prism
Answer:
b) white light through a prism
What does the area under the curve on a F vs. x graph indicate?
a) work
b) displacement
Answer:
a) work
Which type of wave can travel through empty space?
a) radio
b) sound
Answer:
a) radio
In _______ waves there is a twisting motion.
a) transverse
b) tortional
Answer:
b) tortional
Which of the following is an example of resonance
a) the Tacoma Narrows Bridge disaster
b) the bending of water waves around a pier
Answer:
a) the Tacoma Narrows Bridge disaster
You place a pencil in a glass of water and it appears to bend. This
is an example
a) diffraction
b) refraction
Answer:
b) refraction
True or false: The amplitude of a wave is measured from highest
to lowest point.
a) true
b) false
Answer:
b) false
The law of reflection states the angle of incidence _____ the
angle of reflection.
a) is greater than
b) is equal to
Answer:
b) is equal to
An electric field that changes in time produces a _____.
a) gravitational field
b) magnetic field
Answer:
b) magnetic field