Harmonic Motion Quiz Review

A pendulum takes 2 seconds to complete one cycle. What is its period?

• 1/2 sec
• 2 sec
• 4 sec
• 1 sec

A net force of 430 N acts to stretch an extension spring.  How far will the spring stretch if its spring constant is 700 N/m?

• 43.9
• 0.307 m
• 1.63 m
• 0.614 m

A 4.8-kg block attached to an ideal spring executes simple harmonic motion on a frictionless horizontal surface. At time t = 0.00 s, the block has a displacement of -0.90 m, a velocity of -0.80 m/s, and an acceleration of +2.9 m/s/s. The force constant (spring constant) of the spring is closest to

• 15 N/m.
• 14 N/m.
• 13 N/m
• 12 N/m.

This spring has a constant of 80 N/m.  What is the elastic potential energy stored in the spring?  The dotted green line represents the spring's equilibrium position and the green vector is displacement.

• Energy is conserved, it cannot be stored.
• 5 N
• 20 N
• 40 N

Tags

NGSS.HS-PS3-1

Which position shows the spring with maximum kinetic energy?

• A
• B
• C
• D

Tags

CCSS.HSF.TF.A.2

Which position shows the spring with maximum gravitational potential energy?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-4

Which position shows the spring with minimum gravitational potential energy?

• A
• B
• C
• D

Which position shows the spring with minimum elastic potential energy?

• A
• B
• C
• D

Which position shows the spring with maximum elastic potential energy?

• A
• B
• C
• D

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.