1.4 Tides and Currents

Question 1

spring tides

Answer 1

tides experienced during a New Moon with high tides and lower low tides than usual

Question 2

neap tides

Answer 2

tides experienced during the first and last quarters of the moon with lower high tides and higher low tides than usual

Question 3

tidal range

Answer 3

difference in height between high tide and the following low tide

Question 4

tidal amplitude

Answer 4

half the difference in height between high tide and the following low tide

Question 5

( sea or ocean) current

Answer 5

continuous flow of seawater in a particular direction

Question 6

gyre

Answer 6

a large system of rotating ocean currents

Question 7

prevailing winds

Answer 7

the direction from which winds usually blow in a particular direction

Question 8

upwelling

Answer 8

the movement of cold, nutrient-rich water from deep in the ocean to the surface

Question 9

rip current

Answer 9

a narrow powerful current moving from the beach out to the ocean

Question 10

Global Positioning System ( GPS)

Answer 10

A network of artificial satellites forming a navigation and location system