Periodic motion

What force does not act on a pendulum?

• restoring force
• weight
• tension
• mass

Which of the following is not an example of observed periodic motion?

• a car driving down a straight road
• the rotation of a wheel
• a playground swing
• ocean waves

The number of cycles or oscillation made in one second is defined as

• time taken

• period

• frequency

• amplitude

Tags

NGSS.HS-PS4-1

A simple pendulum oscillate in simple harmonic motion. Time taken for the pendulum complete 10 oscillation is 5 seconds. Calculate the period of the motion.

• 0.5 s

• 2π/5 s

• 10 s

• 0.1 s

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

For a system in simple harmonic motion, which of the following is the time required to complete a cycle of motion?

• amplitude
• period
• frequency
• revolution

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

• 1.04 s
• 4.8 s
• 1/4.8 s

What is the frequency of a pendulum that has a period of 10 s?

• 10 Hz
• 1/1000 Hz
• .1 Hz

Tags

NGSS.HS-PS4-1

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

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