# Quiz 13, 12, and 11

The pitch of a sound is determined by its frequency.

The loudness of a sound is related it its amplitude.

Sound is a transverse wave.

The speed of sound is constant.

Sound can travel through a vacuum.

The pitch of a sound is determined by its frequency.

The gravitational force between two objects is inversely proportional to the square of the distance between the two objects.

The path of the planets around the Sun is elliptical in shape.

The Sun is located at one of the foci of the planets’ elliptical orbits.

The path of the planets around the Sun is circular in shape.

The path of the planets around the Sun is elliptical in shape.

The Sun is located at the center of the of the planets’ circular orbits.

A satellite’s motion is independent of its mass.

The launch speed of a satellite determines the shape of its orbit around Earth.

A geosynchronous satellite has a period of approximately 28 days.

A satellite’s motion is independent of its mass.

A satellite’s velocity and orbital radius are independent of each other.

An object can experience both tensile and compressive stresses at the same time.

Two materials may have similar elastic constants but have vastly different breaking stresses.

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Stress is characterized by the strength of the forces causing deformation, on a “force per unit area” basis.

The elastic modulus can be determined from the ratio of the strain to the stress.

An object can experience both tensile and compressive stresses at the same time.

Strain is characterized by the strength of the forces causing deformation, on a “force per unit area” basis.

Two materials may have similar elastic constants but have vastly different breaking stresses.

A system that undergoes periodic motion always has a stable equilibrium position.

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Simple harmonic motion is periodic motion under the action of a restoring force that is directly proportional to the displacement from equilibrium.

Simple harmonic motion is periodic motion under the action of a restoring force that is inversely proportional to the displacement from equilibrium.

A system that undergoes periodic motion never has a stable equilibrium position.

A system that undergoes periodic motion always has a stable equilibrium position.

All periodic motions are simple harmonic motions.

The mass is located midway between points A and B when its kinetic energy is at maximum.

The mass is located at either point A or B when its kinetic energy is at minimum.

The mass is located midway between points A and B when its potential energy is at maximum.

The mass is located midway between points A and B when its kinetic energy is at maximum.

The mass is located at either point A or B when its potential energy is at minimum.

The period is proportional to the suspended mass.

The period is independent of the suspended mass.

The period is proportional to the length of the wire.

The period is independent of the length of the wire.

The period is inversely proportional to the length of the wire.

The period is inversely proportional to the suspended mass.