A longitudinal wave is
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A longitudinal wave is:. A wave where the oscillation is perpendicular to the direction of motion A wave where the oscillation is in the same direction as the direction of motion. How many nodes and antinodes?. 4, 5 5, 8 5, 4 4, 8.

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A longitudinal wave is:

  • A wave where the oscillation is perpendicular to the direction of motion

  • A wave where the oscillation is in the same direction as the direction of motion


How many nodes and antinodes?

  • 4, 5

  • 5, 8

  • 5, 4

  • 4, 8


If the amplitude is twice as big, which of the following is true of a pendulum?

  • The pendulum swings twice as far away from the center

  • Its period is twice as long

  • Its frequency is twice as high

  • It must have twice the mass


In any system in simple harmonic motion, the restoring force acting on the mass in the system is proportional to

  • Displacement

  • The length of a pendulum

  • The mass

  • frequency


Which of the following sources of sound has the shortest wavelength?

  • A female soprano singer at 2,000 Hz

  • A bass guitar at 150 Hz

  • A male voice at 500 Hz

  • The rumble of thunder at 75 Hz


Leader Board


In an oscillating mass-spring system, the velocity of the mass is greatest when the mass is

  • At the point of maximum displacement

  • Halfway between the equilibrium point and maximum displacement

  • At a point where acceleration is greatest

  • At the equilibrium point


Two successive crests of a transverse wave are 1.20 m apart. Eight crests pass a given point every 12.0 s. What is the wave speed?

  • 0.667 m/s

  • 1.80 m/s

  • 0.800 m/s

  • 9.60 m/s


The period of a pendulum may be decreased by

  • Shortening its length

  • Increasing the mass of the bob

  • Moving its equilibrium point

  • Decreasing the mass of the bob


If the pendulum completes exactly 12 cycles in 2.0 minutes, what is the frequency of the pendulum?

  • 0.10 Hz

  • 0. 17 Hz

  • 6.0 Hz

  • 10 Hz


As the swinging bob of a pendulum moves farther from its equilibrium position, the pendulum’s _________ increases

  • Frequency

  • Mass

  • Restoring force

  • Length


Leader Board


A

The period of this wave is…

  • 2 seconds

  • 4 seconds

  • 6 seconds


A

The amplitude of this wave is…

  • 4.8 meters

  • 4.0 meters

  • 2.4 meters


The GPE of the bob of a swinging pendulum is at its maximum when the bob is at

  • Maximum displacement

  • The equilibrium point

  • The center of its swing

  • Minimum displacement


In a system in simple harmonic motion, the amplitude depends on

  • Frequency

  • Wavelength

  • The position of the equilibrium point

  • Energy of the system


A wave with an amplitude of 0.75 m has the same wavelength as a second wave with an amplitude of 0.53 m. The two waves interfere. What is the amplitude of the resultant wave if the interference is constructive?

  • 0.22 m

  • 0.53 m

  • 0.75 m

  • 1.28 m


Leader Board


A slinky is stretched to a length of 7 m. All of the following standing wave wavelengths are possible except…

  • 21 m

  • 14 m

  • 7 m

  • 3.5 m


A total of 5 s passes as a child completes one complete swing on a playground swing. The period of the swing is

  • 1/5 s

  • 20 s

  • 5 s

  • 1 s


The frequency of a certain pendulum is 0.5 Hz. The period of this pendulum is

  • 0.2 s

  • 0.5 s

  • 2 s

  • 5 s


Which of the following factors has the greatest effect on the frequency of a swinging pendulum?

  • Friction

  • Amplitude

  • Mass

  • Length


If a given pendulum is moved from Earth to a location where the gravitational acceleration is greater than Earth’s, the frequency of the pendulum’s swing will

  • Increase

  • Decrease

  • Be unchanged

  • Vary with the mass of the bob


Leader Board


You have constructed an oscillating mass-spring system for an experiment. In order to increase the frequency of the system, you could

  • Decrease the initial displacement

  • Use a greater mass

  • Use a spring with a higher spring constant

  • Increase the period of oscillation

10


A wave with an amplitude of 0.75 m has the same wavelength as a second wave with an amplitude of 0.53 m. If the two waves destructively interfere, what is the amplitude of the resultant wave?

  • 0.22 m

  • 0.53 m

  • 0.75 m

  • 1.28 m

10


If the length of a pendulum gets longer, the period of the pendulum:

  • Gets longer

  • Gets shorter

  • Stays the same

  • Not enough information

10


The material through which a mechanical wave travels is

  • A medium

  • Empty space

  • Water

  • Air

10


When a transverse wave passes through water, water molecules are displaced

  • Permanently in the direction of the wave motion

  • Permanently in a direction perpendicular to the wave

  • Temporarily in the direction of the wave motion

  • Temporarily in a direction perpendicular to the wave

10


Leader Board


A wave that is produced by a single motion that does not repeat is a ________.

  • Transverse wave

  • Continuous wave

  • Pulse

  • Compression

10


The distance between two successive troughs of a transverse wave is the wave’s

  • Amplitude

  • Wavelength

  • Frequency

  • Rarefaction

10


Suppose you are dangling your foot in a swimming pool, making ripples (waves) by moving your foot up and down. What could you do to make the ripples travel faster through the water?

  • Move your foot up and down more frequently

  • Move your foot up and down less frequently

  • Move your foot up and down more strongly

  • None of the above

10


When a wave on a rope strikes a free boundary, the wave is

  • Reflected and inverted

  • Reflected but not inverted

  • Not reflection

  • absorbed

10


A wave is passing through a uniform medium. As the frequency of this wave increases, its wavelength

  • Depends on amplitude

  • Decreases

  • Increases

  • Does not change

10


Leader Board


If the amplitude of a mechanical wave is tripled, the rate of energy transfer of the wave is _____ .

  • Increased by a factor of 9

  • Decreased by a factor of 9

  • Increased by a factor of 3

  • Decreased by a factor of 3

10


A ____ wave travels through a medium as a series of compressions and rarefactions.

  • Sine

  • Longitudinal

  • Pulse

  • Transverse

10


When two transverse waves traveling through a medium meet and exactly coincide, the resulting displacement of the medium

  • Is the sum of the displacements of each wave

  • Is zero

  • Is always greater than the displacement of either wave alone

  • Is always destructive

10


When two waves having displacements in opposite directions meet, ____ occurs.

  • Complete destructive interference

  • No interference

  • Constructive interference

  • Destructive interference

10


A wave pattern on a stretched string appears to be stationary. This wave pattern is an example of

  • A longitudinal wave

  • A non-periodic wave

  • A pulse wave

  • A standing wave

10


Leader Board


In a standing wave on a vibrating string, a point that appears to remain stationary is a(n)

  • Antinode

  • Point of constructive interference

  • Node

  • rarefaction

10


An ocean wave has a frequency of 2 Hz and a speed of 20 m/s. What is the wavelength of this wave?

  • 0.1 m

  • 5 m

  • 10 m

  • 40 m

10


Two waves meet and interfere constructively. Which one of the following factors increases?

  • Period

  • Frequency

  • Wavelength

  • None of the above

10


You sit in the audience and listen to a concert band play. Which instruments sound reaches your ears first, the flute or the trombone?

  • The flute

  • The trombone

  • They reach your ears at the same time.

10


If a 48 kg mass oscillates on a spring with a spring constant of 12 N/m, what is the period of the oscillation?

  • 8π seconds

  • 4π seconds

  • π seconds

  • π/2 seconds

10


Leader Board


A certain oscillating mass-spring system has a period of 1.2 s with a 1.0 kg mass. What will the period be when a 4.0 kg mass is substituted for the 1.0 kg mass?

  • 4.8 s

  • 2.4 s

  • 0.6 s

  • 0.3 s

10


The spring constant in a given oscillating mass-spring system may be changed by

  • Increasing the mass

  • Decreasing the mass

  • Decreasing the initial displacement

  • None of the above

10


If the pendulum’s length is 2.00 m and the acceleration due to gravity is 9.80 m/s2, how many complete oscillations does the pendulum make in 5.00 min?

  • 1.76

  • 21.6

  • 106

  • 239

10


In an oscillating mass-spring system, the distance of the maximum compression distance of the spring is a measure of

  • Amplitude

  • Frequency

  • Period

  • Equilibrium

10


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