Sound Quiz

What is sound?

• A form of energy that produces a sensation of hearing

• A form of light energy

• A form of mechanical energy

• A form of heat energy

How is sound produced?

• By vibrating objects

• By electromagnetic waves

• By chemical reactions

• By gravitational force

What is the frequency of a sound wave?

• The distance between two consecutive compressions

• The time taken for one complete oscillation

• The number of compressions passing a fixed point per unit time

• The magnitude of the maximum disturbance in the medium

What determines the pitch of a sound?

• Amplitude

• Frequency

• Speed

• Intensity

What is the intensity of sound?

• The amount of sound energy passing through unit area

• The loudness of the sound

• The speed of the sound wave

• The wavelength of the sound wave

What is the characteristic that enables us to distinguish one sound from another having the same pitch and loudness?

• Frequency

• Timber

• Intensity

• Wavelength

In which medium does sound travel the fastest at a particular temperature?

• Air

• Water

• Iron

• All at the same speed

What is the minimum distance required for hearing distinct echoes?

• 5 meters

• 10 meters

• 17.2 meters

• 34.4 meters

What is the audible range of sound for human beings?

• 20 Hz to 20000 Hz

• 20 Hz to 25000 Hz

• 20 Hz to 30000 Hz

• 20 Hz to 35000 Hz

What is the purpose of using ultrasonic waves in cleaning parts located in hard-to-reach places?

• To remove dust and dirt

• To detect cracks and flaws

• To form images of internal organs

• To communicate with animals