Simple Harmonic Motion Review

From the graph ,the spring constant is.

• 4.5 m

• 15 N

• 20 N/m

• 200 N/m

Tags

NGSS.HS-PS2-1

A mass-spring system can oscillate with simple harmonic motion because a compressed or stretched spring has which kind of energy?

• kinetic
• mechanical
• gravitational potential
• elastic potential

A simple harmonic oscillator takes 4.8 s to undergo five complete vibrations. What is the period (T) of 1 cycle?

• 4.8 s
• .96 s
• 9.8 s

The period of a pendulum may be decreased by

• Increasing the mass of the bob
• moving the equilibrium point
• decreasing the mass of the bob
• shortening the length of pendulum

In any system in SHM, the restoring force acting on the mass in the system is proportional to

• the displacement
• the length of the pendulum
• the mass
• the frequency

A pair of trapeze performers at the circus is swinging from ropes attached to a large elevated platform. Suppose that the performers can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle.

• 2 sec
• 12 sec
• 8 sec
• 10 sec

The diagram shows a velocity-time graph for a mass moving up and down on the end of a spring. Which point represents the velocity of the mass when at the lowest point of its motion? 

• A
• B
• C
• D

A body moves with simple harmonic motion of amplitude A and frequency b/2π .  
What is the magnitude of the acceleration when the body is at maximum displacement? 

• zero  
• 4π²Ab² 
• Ab² 
• 4π²A/b²

An object oscillating in simple harmonic motion has a time period T. The first graph shows how its displacement varies with time. Which of the subsequent graphs, A to D, show how the kinetic energy, Ek, of the object varies with time? 

• A
• B
• C
• D

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Which graph, A to D, shows the variation of the kinetic energy, E_k, with displacement x for a particle performing simple harmonic motion? 

• A
• B
• C
• D

Tags

NGSS.HS-PS3-2