Harmonic Motion

Where does a pendulum have maximum kinetic energy?

• at the bottom of its arc

• at the end of its swing

• as it rises up

• as it falls

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

For a system in simple harmonic motion, which of the following is the number of cycles or vibrations per unit of time?

• amplitude

• period

• frequency

• revolution

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

Tags

NGSS.HS-PS3-2

A pendulum swings back and forth 10 times in 12.1 s. What is the period?

• 12.1 s

• 1..21 s

• 0.121 s

• 0.826 s

• 8.26 s

A pendulum swings back and forth 10 times in 12.1 s. What is the frequency?

• 12.1 Hz

• 1..21 Hz

• 0.121 Hz

• 0.826 Hz

• 8.26 Hz

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

If the length of a simple pendulum is doubled, its period will: 

• halve 

• increase by a factor of sqrt(2) 

• decrease by a factor of sqrt(2)

• double 

The maximum velocity occurs where the ____.

• potential energy is a maximum

  
  

• kinetic energy is a minimum

  
  

• displacement from equilibrium is equal to

  the amplitude of 0.4 𝑚

• displacement from equilibrium is equal to

  zero

Increasing which of the following will increase the frequency of a spring-mass oscillator? (SELECT ALL THAT APPLY.)

• Spring constant

• Mass

• Amplitude

• Gravitational field strength

• Period

Tags

NGSS.HS-PS4-1

When does the mass move at 0 velocity in a mass-spring system?

• At equilibrium

• At the farthest point from the equilibrium

• At its hightest point

• At its lowest point