Understanding Sound and Hearing Concepts

What is the nature of sound waves?

• Transverse waves

• Longitudinal waves

• Electromagnetic waves

• Surface waves

Which of the following is NOT a source of sound?

• A silent room

• A blowing trumpet

• A ringing bell

• A vibrating guitar string

What type of sound can humans hear?

• Supersonic

• Audiosonic

• Infrasonic

• Ultrasonic

Which medium does sound travel fastest through?

• Water

• Air

• Vacuum

• Steel

What happens to the speed of sound as the temperature of the medium increases?

• It decreases

• It remains constant

• It increases

• It fluctuates

What is an echo?

• A sound that reinforces the original sound

• A sound that is heard after the original sound

• A sound that is absorbed by surfaces

• A sound that is not reflected

Which material is used to prevent reverberation in concert halls?

• Metal

• Glass

• Carpet

• Concrete

What is the primary function of the ear?

• To hear

• To balance

• To see

• To taste

What part of the ear vibrates in response to sound?

• Pinna

• Ear canal

• Eardrum

• Cochlea

Why is it important to protect your ears from loud noises?

• To improve vision

• To prevent ear infections

• To avoid damage to the eardrum

• To maintain balance