Currents, Waves, and Tides

A _____ is a transfer of energy from one water molecule to the next.

• current
• wave
• breaker

What causes waves?

• ice and wind
• winds and currents
• currents and tides
• wind and tide changes

What is the lowest point of a wave called?

• crest
• trough
• breaker
• peak

At low tide there is _____.

• less beach
• more water
• higher water
• more beach

Surface currents...

• occur below the surface of the water.
• occur above the surface of the water.
• occur on the surface of the water.
• All of the above.

What is the highest point of a wave called?

• the top
• peak
• crest
• trough

What is the distance from the crest of one wave to the crest of another?

• current
• peak
• wave height
• wave length

What is the distance from the trough of the wave to the crest?

• peak
• wave length
• wave height
• trough

The development of a wave usually begins with

• currents

• wind

• gravity

• tsunamis

The rise and fall of Earth's waters on its coastlines are called

• currents

• tides

• waves

• gravity