A longitudinal wave is:

1 / 53

# A longitudinal wave is: - PowerPoint PPT Presentation

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.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about 'A longitudinal wave is:' - phuoc

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
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
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
• 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
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

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
• 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
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
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

• Gets longer
• Gets shorter
• Stays the same
• Not enough information

10

• 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

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

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

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