tides

Question 1

what source of energy is responsible for tides?

Answer 1

gravity

Question 2

when do tides occur?

Answer 2

when the gravitational pull of the sun or moon changes the water levels of the seas and oceans

Question 3

what is the tidal range?

Answer 3

difference in height between the tides

Question 4

explain spring tides

Answer 4

The highest high tide and the lowest low tides occur when the sun and the moon are in alignment. Both of their gravitational forces combine to effectively pull the oceans towards them to cause the highest high tides. On the other side of the planet, this creates the lowest possible low tides. This is a spring tide and it creates the largest possible tidal range.

Question 5

explain neap tides

Answer 5

The lowest high tide and the highest low tides occur when the sun and the moon are perpendicular to each other. Both of their gravitational forces act against each other, so the
overall pull is minimised at high tide, but therefore creates a higher low tide. This is a neap tide
and it creates the smallest possible tidal range.

Question 6

what type of tide has the highest high tide and lowest low tide?

Answer 6

spring

Question 7

what type of tide has the lowest high tide and highest low tide?

Answer 7

neap

Question 8

sun and moon are in alignment

Answer 8

spring

Question 9

sun and moon are perpendicular

Answer 9

neap

Question 10

gravitational forces combine pulling the oceans towards them

Answer 10

spring

Question 11

gravitational forces combine pulling the oceans to act against them

Answer 11

neap

Question 12

largest possible tidal range

Answer 12

spring

Question 13

smallest possible tidal range

Answer 13

neap

Question 14

what do tides affect and what can this lead to?

Answer 14

erosion

formation of different coastal landforms