Unit 2 vocabulary

Resonance happens when...

• a vibrating object absorbs energy from another object vibrating at the same frequency .

• an object reflects light onto another object.

• a still object absorbs energy from another object.

• a measurement of how fast something is moving.

What is the best description of a wave?

• A sound wave

• An ocean wave

• a disturbance that transfers energy from one place to another without transferring matter.

• A slinky wave

An electromagnet is a transfers wave that can travel through...

• a person

• water

• a wall

• empty space and matter

Diffraction is the change in _______ of a wave when it travels by the edge of an of an object or through an opening.

• height

• direction

• amount

• none of the above

A material in which a wave travels is a...

• Medium

• high

• low

• all of the above

The crest is the...

• lowest point on a wave

• point that stays the same

• highest point on a wave

• the crest isn't on a wave

The trough is the...

• lowest point on a wave

• highest point on a wave

• not on a wave at all

• the height of the wave

A wavelength is...

• the height of the wave

• the lowest point on a wave

• the highest point on a wave

• the distance between one point on a wave and the nearest point just like it

What is the number of wavelengths that pass by a point each second?

• frequency

• wavelength

• disturbance

• resonance

A mechanical wave can only travel through ______.

• water

• walls

• oxygen

• matter