The Science of Sound

What is sound made from?

• Vibrations

• Light

• Heat

• Electricity

How are sound waves created?

• By vibrations of objects

• By light waves

• By heat waves

• By electricity

What causes the particles in the air to vibrate in our ears?

• Sound waves

• Light waves

• Heat waves

• Electricity

What is pitch?

• The highness or lowness of a sound

• The loudness or quietness of a sound

• The speed of sound waves

• The size of sound waves

What happens to the pitch when the sound waves have a higher frecuency?

• It becomes higher

• It becomes lower

• It stays the same

• It disappears

What is volume?

• The highness or lowness of a sound

• The loudness or quietness of a sound

• The speed of sound waves

• The size of sound waves

True or False: Pitch is the loudness or quietness of a sound.

• True

• False

True or False: Sound waves help vibrations travel.

• True

• False

True or False: A falling tree in the middle of the forest makes a sound even if there is no one around.

• True

• False

What are vibrations?

• Series of small fast movements

• Series of big slow movements

• Series of random movements

• Series of still movements