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damping is
the slowing down of periodic motion due to friction
the rest position of a mass on a spring is called its
equilibrium position
which statement is true about simple harmonic motion
mechanical energy is conserved
the period of a harmonic oscillator is
the time the oscillator takes to complete one cycle
the acceleration of an oscillating mass on a spring is
always changing
simple harmonic motion does not require
damping
which would cause the period of an ideal spring-mass oscillating system to increase
using less stiff spring (smaller spring constant)
the period of an oscillating mass on a spring is directly related to
the spring constant
which is not an assumption we make for a simple pendulum to approximate simple harmonic motion
the pendulum’s period is related to the mass of the pendulum bob
a pendulum approximates a simple harmonic oscillator provided that
the amplitude is small
the period of a simple pendulum is
inversely proportional to the square root of the acceleration due to gravity
for a physical pendulum the period depends on all of the following except the
pendulum bob’s initial velocity
which is not an example of a damping force
inertia
what kind of force does not act on a driven oscillator
a continuously applied force
resonance is produced when an oscillating object
is driven in phase
which of the following involves a significant transverse wave component to be created in the wave medium
bumping into a small aquarium
longitudinal waves
travel fastest in solids
which would cause the period of an oscillator to decrease
shortening the pendulum arm
which statement characterizes longitudinal waves
they travel fastest in solids
in simple harmonic motion
energy is conserved
through which medium does sound travel faster
wood
an oboe softly playing middle-C and a piano loudly playing middle-C have the same
frequency
which of the following is not a characteristic of sound as perceived by the ear
velocity
the perceived frequency of waves from a moving source compared to the actual frequency at the source is called the
doppler effect
at what location on the earth does a Foucault pendulum not display precession of its swing
at the equator
when two sets of waves in a medium are superimposed and the trough of one wave coincides with the trough of another wave the resultant wave amplitude will be
larger than either wave amplitude amplitudes
in the Young’s double-slit experiment doing which of the following will cause the distance of the maxima from the center maximum to increase
position the slits closer together
in the Young’s double-slit experiment which of the following will occur if the projection screen is moved farther from the slits
the distance between the maxima will increase
which of the following is not an example of thin-film interference
rainbow colors form the surface of a CD
which of the following is not a way to polarize light
selective diffraction
a red sunset is most likely a result of polarization by
scattering
why is the sky blue
particles in the atmosphere preferentially scatter blue light
motion that repeats at a constant rate is called
periodic motion
damping is the effect of _ on a vibrating system
friction
the net force on an oscillating mass is called the force
restoring
the maximum displacement of an oscillating object from equilibrium is called the
amplitude
the SI unit of frequency is the
hertz
as the stiffness of an oscillating spring increases its restoring force
increases
the region where molecules spread apart in a longitudinal wave is called the
rare fraction
the restoring force of a pendulum oscillator (for small angles) is dependent on the weight of the pendulum bob and its
displacement angle
for the small initial displacement angles the period of a pendulum is dependent on the
length of pendulum arm
the kinetic energy of a pendulum is the greatest at of the swing
bottom
the harmonic oscillator that barely completes one cycle before damping stops motion is
critically damped
the frequency at which a force is most effective in increasing the amplitude of an oscillating object is called the
natural oscillation frequency
plucking a guitar string that emits the guitar’s natural frequency causes the guitar to exhibit
resonance
in the case of the waves in a rippling flag the medium of the wave is the
fabric
if a sound is loud then the difference in _ between adjacent compressions and rarefactions is __
pressure
large
the difference in frequency between two sound waves results in different as sensed by the ear
pitches
the apparent change in frequency of the light emitted by stars moving away from earth is an example of
doppler shift