Unit 5, Chapter 7

How does light travel?

• Through solids

• Through emptiness

• Through gravity

• Through waves

The speed at which light and sound travel is __________.

Why is the pitch of a baby different than the pitch of an adult?

• The type of sound waves

• The type of light waves

• They are both different ages

• One can talk and the other cannot

What is the meaning of pitch on page 80?

• a baby screaming

• a type of sound

• what sound travels through

• how high or low a sound is

Which of the following has a low pitch?

• an bird

• an elephant

• a tiger

• a shark

Which of the following is another word for pitch?

• volume

• music

• tone

• screech

What causes something to have a lower pitch?

• vibrations

• longer sound waves

• shorter sound waves

• a cow

According to the selection, what is intensity compared to?

• volume

• pitch

• vibrations

• tone

Draw what has a higher intensity. Fireworks or a cow mooing.

How can your ears be damage?

• low tones

• loud sounds

• bright lights

• not doing your homework