Waves and Tides

Waves 1

100

The top of the wave is called the ___________

crest

200

The bottom part of a wave is called __________

trough

300

The cause of "everyday" waves you might see at the beach

wind

400

When the crest of one waves meets the crest of another wave it doubles in height.  This is called a ______________ wave 

constructive 

500

As waves move, individual water molecules are displaced __________ and __________

up and down

Waves 2

100

Tsunamis are large waves caused by ___________

earthquakes

200

The distance between crest to trough is called the 

wave height 

300

The distance between crest to crest OR trough to trough is called the 

wavelength

400

When the crest of one wave meets the trough of another, the wave height 

a) doubles 

b) stays the same 

c) becomes 0 

c) becomes 0

500

List all three possible causes of waves (include tides as a type of wave)

wind, earthquakes, gravity

Tides 1

100

If high tide is 30ft, and low tide is 15ft, what is the tidal range?

15ft

200

________________ tides are the when high tides are higher than usual and low tides are lower than usual

spring tides

300

This type of tide occurs during the first quarter half moon and the third quarter half moon

Neap Tides

400

Explain why the moon has a stronger pull on the tides than the Sun

The moon is closer

500

List the three conditions that would produce the lowest possible low tide.

perihelion / aphelion 

perigee/ apogee

Moon phase(s)

perihelion, perigee, full / new moon

Tides 2

100

Explain the effect on tidal range during a first quarter half moon

Lower tidal range (decrease)

200

Explain the effect on the tidal range during a new moon

Larger tidal range (increase)

300

Draw a waxing gibbous moon

shaded crescent on the left side

400

Tidal power works by using the natural movement of the tides to move a ____________, which generates electricity.

Turbine

500

List the two factors that impact the strength of a gravitational pull

size and distance

Review

100

The type of bonds between water molecules

hydrogen bonds

200

Who sailed the Cape of Good Hope in the 1500s

Vasco da Gama

300

Sea floor spreading occurs at which type of boundary

divergent

400

In a nautical chart, the numbers around the map indicate __________

water depth

500

Hadley cells occur between _____ latitude and _______ latitude in both hemispheres

0 and 30 degrees