Energy

What is Energy?

• the ability to cause motion or create change

• how low or high a sound is

• energy that is stored in an object

What is electrical energy?

• a measure of how strong a sound seems to us

• energy caused by the movement of electronically charged particles

• distance between a point on a wave and a similar point on the next wave

Light energy travels as waves and can move through an empty space.

• True

• False

The energy of motion

• potential

• light

• kinetic

Sound energy is caused by vibrations.

• true

• false

Most light energy come from the

• electrical lights

• sun

• lamps

A telescope is a device that takes sound waves and displays the waves on a screen.

• true

• false

the measure of how strong a sound seems to us

• pitch

• volume

• wavelength

Amplitude is the height of a wave from its midline.

• True

• False

Objects that vibrate more quickly have lower frequencies

• true

• false