SIMPLE HARMONIC MOTION & RESONANCE

A mass attached to a spring vibrates back and forth. At the equilibrium position, the

• acceleration reaches a maximum.
• velocity reaches a maximum.
• net force reaches a maximum.
• velocity reaches zero.

For a system in simple harmonic motion, which of the following is the number of cycles or vibrations in one second?

• amplitude
• period
• frequency
• revolution

Tags

NGSS.HS-PS4-1

For a system in simple harmonic motion, which of the following is the time required to complete a cycle of motion?

• amplitude
• period
• frequency
• revolution

Which position shows the spring with maximum kinetic energy?

• A
• B
• C
• D

Tags

NGSS.HS-PS3-2

A mass is hung from a spring and set into vertical oscillation.
Which row in the table correctly shows the kinetic energy E_k of the mass at maximum displacement and the potential energy E_p of the mass at the equilibrium position?

• A
• B
• C
• D

Tags

NGSS.HS-PS3-2

Which position shows the spring with maximum elastic potential energy?

• A
• B
• C
• D

Which would have the longest period?

Pendulum A: A 200-g mass attached to a 1.0-m length string

Pendulum B: A 400-g mass attached to a 0.5-m length string

• A

• B

• Same

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.

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 the point where acceleration is greatest.

• at the equilibrium point

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