Sound and its Effect.

This is an MCQ-based quiz on the topic of Sound.

It covers Pitch, Frequency, Speed, Amplitude, and Loudness

Start Quiz

A pendulum oscillates 20 times in 4 seconds. Find its time period.

0.05 sec. 0.001 sec. 0.2 sec. 0.1 sec

Sound is produced by

Non-Vibrating objects only Vibrating and non- vibrating objects Vibration has no relation to sound Vibrating objects only

The velocity of sound at 20°C is approximately

3400 m/sec. 340 m/sec. 430 m/sec 304 m/sec.

Frequency is expressed in

Kilometer Hertz gram Degree centigrade

Vibration is also known as

Vibratory motion Translatory motion Oscillatory motion None of these

Loudness of sound is measured in units of

Decibel (dB) Hertz (Hz) Metre (m) Metre/second (m/s)

Which of the following statements are correct?

Sound is produced by vibration and sound requires a medium for propagation. Sound is produced by vibration and sound requires a medium for propagation and light and sound both requires a medium for propagation. Sound requires a medium for propagation and light and sound both requires a medium for propagation and sound travel slower than light. Sound is produced by vibration and sound requires a medium for propagation and sound travel slower than light.

Ultrasound has frequency of vibration:

Between 20 and 20,000 Hz Below 20 Hz Above 20,000 Hz Between 500 and 10,000 Hz

The train “A” travelled a distance of 150 km in 3 hours whereas another train “B” travelled a distance of 180 km in 4 hours. Which train travelled faster?

Train A Train B Both have same speed Not to be calculated

In which of these medium can sound travel?

Wood and Water Wood and Water and Air Air and Vacuum Water and Air and Vacuum

The voice box is also called as

Stomach Heart Larynx Mouth

Sound is a kind of

Work Energy Force Pressure

The hearing range of human ear is

20 Hz to 20,000 Hz Less than 20 Hz More than 20,000 Hz 20 Hz to 25,000 Hz

The frequency of subsonic sound is

More than 20 Hz 100 Hz Less than 20 Hz More than 20,000 Hz

Pitch of sound is determined by its