Frequency and Periodic Time Quiz

What is the definition of frequency in physics?

• The time taken for one complete cycle of motion

• The number of cycles completed in one second

• The distance traveled in one cycle

• The amplitude of the motion

A tuning fork vibrates at a frequency of 440 Hz. What is the time period of one vibration?

• 0.00227 seconds

• 0.0045 seconds

• 0.01 seconds

• 0.1 seconds

A wave has a frequency of 50 Hz. What is its periodic time?

• 0.02 seconds

• 0.5 seconds

• 2 seconds

• 20 seconds

A pendulum has a period of 2 seconds. How long will it take to complete 15 oscillations?

• 15 seconds

• 30 seconds

• 45 seconds

• 60 seconds

If a pendulum completes 20 oscillations in 10 seconds, what is its frequency?

• 1 Hz

• 2 Hz

• 5 Hz

• 10 Hz

Which of the following statements is true about simple harmonic motion?

• The acceleration is constant

• The motion is always in a straight line

• The restoring force is directly proportional to the displacement

• The total energy remains constant only when friction is present

Which of the following is an example of simple harmonic motion?

• A car moving in a straight line

• A child swinging on a swing

• A ball rolling down a hill

• A clock's second hand moving

A mass-spring system oscillates with a frequency of 3 Hz. If the spring constant is increased, what happens to the frequency?

• It decreases

• It increases

• It remains the same

• It becomes zero

If the periodic time of a wave is 0.1 seconds, how many cycles occur in 5 seconds?

• 10 cycles

• 20 cycles

• 50 cycles

• 100 cycles

A mass on a spring oscillates with a frequency of 4 Hz. If the mass is doubled, how does the frequency change?

• It remains the same

• It doubles

• It halves

• It quadruples