Waves & SHM

Which of the following is NOT required for a simple pendulum undergoing simple harmonic oscillation?

• a large spring constant
• gravitational force
• a small amplitude
• a massless string

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 

A simple pendulum of length L and mass M has frequency f.  To increase its frequency to 2f:

• increase its length to 4L 
• increase its length to 2L 
• decrease its length to L/2
• decrease its length to L/4 

The period of a simple pendulum is 1 s on Earth. When brought to a planet where g is one-tenth that on Earth, its period becomes:

• 1 s 
• 1/ sqrt(10) s
• 1/10 s
• sqrt(10) s

A force of  30 N stretches a very light ideal spring 0.73 m from equilibrium. What is the force constant (spring constant) of the spring?

• 41 N/m
• 22 N/m
• 34 N/m
• 46 N/m

An object is attached to a vertical spring and bobs up and down between points A and B.  Where is the object located when its kinetic energy is a minimum?

• at either A or B
• midway between A and B
• one-third of the way between A and B
• one-fourth of the way between A and B

If a force of 20 N stretches a spring 0.5 m, what is the spring constant?

• 10 N/m
• 20 N/m
• 40 N/cm
• 40 N/m

An amusement park ride has a frequency of 0.064 Hz. What is the ride’s period?

• 0.064 sec
• 6.4 sec
• 2pi / 0.064
• 15.625 sec

Tags

NGSS.HS-PS4-1

An amusement park ride swings back and forth (like a pendulum) once every 17.4 s. What is the ride’s frequency?

• 0.0575 sec
• 0.0575 hz
• 17.4 sec
• 17.4 hz

The angle between the string of a pendulum at its equilibrium position and at its maximum displacement is the pendulum’s

• period.
• frequency.
• vibration.
• amplitude.

Tags

NGSS.MS-PS4-1