ROTATION OF EARTH

ROTATION OF EARTH

WHAT IS ROTATION OF EARTH ?

• Rotation can also be called as daily movement.
• Earth rotates from west to east along its tilted axis.
• Earth takes approximately 24 hours to complete one rotation.
• Days and nights occur due to this rotation.
• The speed decreases towards the pole, where it is zero.

WHAT IS ORBITAL PLANE?

• Orbital plane is a plane formed by the orbit.
• Axis of Earth makes an angle of 66½° with its orbital plane.
   

WHAT ARE THE IMPACTS OF ROTATION ?

• Rotation creates a diurnal cycle of light and darkness and makes life possible on the Earth.
• Rotation creates a corresponding cycle of temperature and humidity.
• Rotation is required for the creation of Standard Time Zones. 24 zones for each hour of the earth’s rotation.
• Rotation causes the twice daily rise and fall of sea tides.
• Rotation causes a deflection in ocean and air currents.
• The geoid shape of the Earth is due to the centrifugal force of its rotation.
• Earth’s rotation causes cyclones to move in an anticlockwise direction in the northern hemisphere and in a clockwise direction in the southern hemisphere