3.4a

Which of the following does not affect the period of the pendulum?

• the length of the string

• the mass of the pendulum bob

• the free-fall acceleration at the pendulum’s location

• All of the above affect the period.

If the pendulum completes exactly 24 cycles in 3.0 min, what is the frequency of the pendulum?

• 7.5 HZ

• 0.13 HZ

• 0.15 HZ

• 8.0 HZ

A spring with a spring constant of 1.8 × 10² N/m is attached to a 1.5 kg mass and then set in motion What is the frequency of the vibration?

• 0.57 Hz

• 1.7 Hz

• 1.3 Hz

• 69 HZ

Tags

NGSS.HS-PS4-1

What is the length of a pendulum that oscillates with a frequency of 0.21 Hz?

• 0.011 m

• 0.33 m

• 2.4 m

• 5.6 m

Tags

NGSS.HS-PS4-1

If the mass is displaced −0.35 m from its equilibrium position, the restoring force is 7.0 N. What is the spring constant?

• −1.4 × 10 -2 N/m

• −2.0 × 10 1 N/m

• 1.4 × 10 -2 N/m

• 2.0 × 10 1 N/m

Tags

NGSS.HS-PS2-1

A mass is attached to a spring and moves with simple harmonic motion on a frictionless horizontal surface, as shown below. In what direction does the restoring force act?

• to the left

• to the right

• to the left or to the right depending on whether the spring is stretched or compressed

• perpendicular to the motion of the mass

Tags

NGSS.HS-PS2-1

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

• acceleration reaches a maximum

• net force reaches a maximum

• velocity reaches a maximum

• velocity reaches zero.

An oscillator completes 30 cycles in 15 seconds, what is its period?

• 30 seconds

• 2 seconds

• 0.5 seconds

• 0.4 seconds

Tags

NGSS.HS-PS4-1

By what factor should the length of a simple pendulum be changed in order to triple the period of vibration?

• 27

• 9

• 4

• 3

A certain pendulum with a 1.00 kg bob has a period of 3.50 s. What will happen to the period of the pendulum if the 1.00 kg bob is replaced by a bob with a mass of 2.00 kg?

• Increase

• decrease

• stay the same

• Increase then decrease