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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:

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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

• 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

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

• 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

• 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

A

• 2 seconds

• 4 seconds

• 6 seconds

A

• 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

• 21 m

• 14 m

• 7 m

• 3.5 m

• 1/5 s

• 20 s

• 5 s

• 1 s

• 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

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

• 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

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

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

• 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

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

• 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

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

• Amplitude

• Frequency

• Period

• Equilibrium

10