Understanding Sound

What determines the pitch of a sound?

• The frequency of the sound wave

• The amplitude of the sound wave

• The duration of the sound

• The medium through which the sound travels

Which type of sound is not audible to humans?

• Subsonic

• Supersonic

• Infrasonic

• Sonic

How does sound travel through different media?

• It cannot travel through liquids

• It travels faster in gases than in solids

• It requires a medium like solid, liquid, or gas

• It can travel through a vacuum

What is the phenomenon called when sound is reflected back to the source?

• Refraction

• Echo

• Diffraction

• Absorption

What is the effect of sound absorption?

• Sound travels faster

• Sound is amplified

• Sound becomes louder

• Sound is weakened or silenced

Which animal uses ultrasonic sound for navigation?

• Cat

• Dog

• Bat

• Elephant

What is one use of sound in technology?

• To navigate underwater

• To create visual images

• To generate electricity

• To measure temperature

What is the role of sound in communication?

• It facilitates interaction

• It complicates understanding

• It is only used by animals

• It is unnecessary

Why is it important to protect our hearing?

• To avoid hearing loss

• To improve eyesight

• To enhance taste

• To increase intelligence

What is a practical way to protect your hearing?

• Listening to loud music

• Using ear protection in noisy environments

• Avoiding all sounds

• Ignoring ear discomfort