power point presentation on types of tides. it shows how the high tide and low tide occurs.

1. TIDES
Tides result from gravitational attraction and
centrifugal effect.

2. TIDES
 The periodic rise and fall of
the water level in the sea.
The main reasons for the occurrence of
tides:
 The gravitational attraction exerted
on the earth by the sun and the moon.
 Centrifugal force created due to the
rotation of the earth.

3. TIDES AND THE MOON
 High tide occurs in those parts of the
ocean which face the moon.
 Low tide occurs at the same time in
those parts which are at an angular
distance of 90 degree to the high tide
regions.

4. VERY HIGH TIDE

5. NEEP TIDE-VERY LOW TIDE

7. SUN AND TIDES
 The sun also has a role in the occurrence of
tides.
 The distance of the sun from the earth is about
400 times the distance between the earth and the
moon
 The sun's gravitational pull on the earth is much
less than the gravitation pull of the moon
 The sun's gravitational attraction plays a role in
the occurrence of tides.

11. THANK YOU…
Submitted by SHEEBA.V