Wave Patterns and Information Transfer

_______ works by the bouncing of sound waves off and object and measuring the time the echoes take to return.

• echo

• reflection

• sonar

• echolocation

What animals does NOT us echolocation?

• bats

• dolphins

• whales

• bears

Are radio waves used by several current communication devices?

• Yes

• No

When you hear the reflection of your voice, you are hearing a ______.

• pitch

• echo

• sound wave

• noise

A sound wave with a high frequency has _____________.

• more wavelengths in a given amount of time

• fewer wavelengths in a given amount of time

• tall waves

• short waves

A sound wave with a high pitch will have a low frequency.

• Yes

• No

Sound energy travels in ________.

• strings

• beams

• pulses

• waves

The reason sounds are not heard in space are because ________

• space is too cold

• there is too much matter

• space is a vacuum with few particles

• energy cannot move in space

What is the height of a sound wave called?

• amplitude

• altitude

• fequency

• length

Echos are sound waves that are ________.

• absorbed

• reflected

• surfed

• transmitted