Sound & Energy
What must happen for sound to be produced?
Answer: An object must vibrate.
Name the three states of matter sound can travel through.
Answer: Solids, liquids, and gases.
Pitch describes how ______ or ______ a sound is.
Answer: High or low.
100 – Amplitude tells us how ______ or ______ a sound is.
Answer: Loud or soft.
True or False: Sound waves can travel without matter.
Answer: False.
200 – What happens to air particles when sound travels through them?
Answer: They vibrate back and forth.
In which state of matter does sound travel the fastest?
Solids
What happens to pitch when vibration frequency increases?
Pitch increases
What happens to amplitude when more force is used to create sound?
Answer: Amplitude increases.
200 – True or False: Loud sounds always have high pitch.
Answer: False.
300 – What does frequency affect in a sound wave?
Answer: Pitch.
Why does sound travel faster in solids than in gases?
The particles are closer together.
300 – Which produces a higher pitch: a short string or a long string?
A short string
Which has greater amplitude: normal talking or shouting?
Answer: Shouting.
300 – If two sounds have the same pitch but one is louder, what is different?
Answer: The amplitude.
400 – What happens to sound waves as they travel farther away?
Answer: They lose energy and become quieter.
Why can sound not travel through space?
Answer: Space has no particles.
Why does a whistle produce a higher pitch than a drum?
It vibrate faster
Why can loud sounds cause damage to hearing?
hey have high amplitude and energy.
400 – If you tap a tuning fork harder, which property changes more?
Answer: Amplitude.
– Pitch and amplitude describe different properties of sound.
Answer: True.
Explain why tapping a desk produces sound you can hear.
The desk vibrates and transfers sound through solid matter.
500 – How does water level affect the pitch of a glass when tapped?
Answer: More water = lower pitch; less water = higher pitch.
Explain the difference between amplitude and pitch.
.
Amplitude affects loudness; pitch affects how high or low a sound is
500 – Why is sound heard better underwater than in air?
Answer: Sound travels faster through liquid than gas.