Unit 7 Review

Unit 7 and 8 Review

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Multiple Select

Which of the following best defines Period? Check all that apply.

• The amount of time it takes to do something

• The amount of time it takes to complete 1 oscillation.

• The amount of time it takes to stop moving

• The amount of time it takes for an object to complete one full ack and forth motion.

Multiple Select

What variables affect the period of a pendulum? Check all that apply.

• the mass of the pendulum bob

• the length of the string

• the gravitational acceleration

• the type of string used

Multiple Select

What variables affect the period of a mass on a spring? Check all that apply.

• the mass of the object on the spring

• the mass of the spring

• the spring constant

• how far the spring is stretched

Multiple Choice

A simple pendulum and a mass-spring are both oscillating with a period of 1 sec. If both systems are taken to the moon (acceleration of gravity roughly 1/6 that of Earth) how will the period of each system change?

• No Change to Pendulum Period; Increase to Mass-Spring Period

• Increase to Pendulum Period; No Change to Mass-Spring Period

• Increase to BOTH Pendulum Period and Mass-Spring Period

• No Change to BOTH Pendulum Period and Mass-Spring Period

Multiple Choice

In the diagram, X represents a single particle of a spring. Which diagram represents the motion of particle X as a longitudinal wave passes through the spring toward the right?

Remember, when frequency goes up, the wavelength goes down, and vice versa.

Multiple Choice

Consider Diagram A and Diagram B above. Compared to the wave in Diagram B, the wave in Diagram A has -

• the same amplitude and a larger wavelength.

• a larger amplitude and smaller wavelength.

• a smaller amplitude and the same wavelength.

• the same amplitude and a smaller wavelength.

Multiple Choice

Consider Diagram A and Diagram B above. Compared to the wave in Diagram B, the wave in Diagram A has -

• the same amplitude and a larger wavelength.

• a larger amplitude and smaller wavelength.

• a smaller amplitude and the same wavelength.

• the same amplitude and a smaller wavelength.

Multiple Choice

A wave generator produces straight, parallel wave fronts in a shallow tank of uniform-depth water. As the frequency of vibration of the generator increases, which characteristic of the wave will always decrease?

• Amplitude

• Wavelength

• Phase

• Speed

Multiple Choice

A student generates water waves in a pool of water. In order to increase the energy carried by the waves, the student should generate waves with a

• greater amplitude

• higher frequency

• greater wavelength

• longer period

Multiple Choice

In the diagram which letters represent the nodes

• A B C

• A C E

• B D

• B D E

• A C D

Multiple Choice

The figure shows a standing wave in a pipe that is closed at one end. How many nodes are present in this pattern?

• 1

• 2

• 3

• 5

Multiple Choice

A rope is vibrating so as to form the standing wave pattern shown. What harmonic is shown in the pattern?

• Second

• Third

• Fourth

• Fifth

Multiple Choice

The diagram at the right depicts a standing wave pattern in an open-end air column. This is the pattern for the _____ harmonic.

• Second

• Third

• Fourth

• Fifth

Multiple Choice

The two pulses shown at the right are moving in opposite directions along the same medium. When they meet, _____ interference will occur.

• doppler

• resonance

• destructive

• constructive

Multiple Choice

What affect will adding more light bulbs in series have upon the overall resistance of a circuit?

• As more light bulbs are added in series, the overall resistance increases.

• As more light bulbs are added in series, the overall resistance decreases.

• Adding more light bulbs in series will have no affect upon the overall resistance.

• Its not that simple to predict; one must know if they are round bulbs or long bulbs.

Multiple Choice

The two pulses shown at the right are moving in opposite directions along the same medium. When they meet, _____ interference will occur.

• destructive

• constructive

• doppler

• resonance

Multiple Choice

The diagram to the right represents a standing wave produced in a string by vibrating wave generator. How many antinodes are shown in this standing wave?

• 1

• 2

• 3

• 4

Multiple Choice

Two pulses approach each other in a uniform medium, as represented in the diagram below.Which diagram best represents the superposition of the two pulses when the pulses overlap?

Multiple Choice

The Doppler effect is best described as the-

• bending of waves as they pass by obstacles or through openings

• change in speed of a wave as the wave moves from one medium to another

• creation of a standing wave from two waves traveling in opposite directions in the same medium

• shift in the observed frequency and wavelength of a wave caused by the relative motion between the wave's source and an observer

Multiple Choice

The diagram below represents the wave fronts produced by a point source moving to the right in a uniform medium. Observers are located at points A and B. Compared to the wave frequency and wavelength observed at point A, the wave observed at point B has a

• higher frequency and a shorter wavelength

• higher frequency and a longer wavelength

• lower frequency and a shorter wavelength

• lower frequency and a longer wavelength