Vibrations and Waves Quiz

A regular back-and-forth motion is called a …

• Displacement

• Vibration

• Wave

• Pull

One complete vibration occurs when an object …

• Moves from the farthest point to the center

• Moves back and forth once

• Stays at the equilibrium point

• Moves straight forward

The unit of frequency is …

• m/s

• Newton

• Hertz

• Joule

If the frequency is 5 Hz, then the period is …

• 0.2 s

• 5 s

• 1.5 s

• 0.5 s

Amplitude is …

• Time for one vibration

• Maximum displacement from the equilibrium

• Speed of the vibration

• Number of waves

A pendulum vibrates 60 times in 30 seconds. Its frequency is …

• 1 Hz

• 2 Hz

• 30 Hz

• 0.5 Hz

Period is …

• Number of vibrations per second

• Speed of vibrating object

• Time for one vibration

• Energy of object

Frequency is inversely related to …

• Amplitude

• Period

• Displacement

• Energy

If one vibration takes 0.25 s, the frequency is …

• 4 Hz

• 2 Hz

• 0.25 Hz

• 10 Hz

The greater the amplitude, the …

• Smaller the energy

• Higher the frequency

• Greater the vibration energy

• Longer the period