Motion of the EarthC.B.PRASAD

K.V. KHAGAUL

ReviewWhat does the solar system consist of?

What is at the center of the solar system?Sun

1) Sun2) Planets3) Asteroids4) The natural satellites of the planets5) Comets 6) Interplanetary dust7) Meteoroids

Axis

An imaginary line which runs through both

poles of a planet.

Rotation of the Earth

The Earth is spinning upon a central axis.

The Earth's axis is tipped over about 23.5° from the vertical.

The Earth rotates around once in 24 hours.

Direction of the Rotation

In which direction does the earth rotate?

Revolution of the Earth

The earth revolves around the sun. The orbit is elliptic. The Earth's tilt stays constant. The Earth completes one revolution in 365 days.

Period of RevolutionPlanets Period of Revolution Around the Sun

Mercury 87.96 Earth days

Venus 224.68 Earth days

Earth 365.26 days

Mars 686.98 Earth days

Jupiter 11.862 Earth years

Saturn 29.456 Earth years

Uranus 84.07 Earth years

Neptune 164.81 Earth years

Pluto (dwarf planet) 247.7 years

Rotation and Revolution Worksheet

Rotation Revolution

Define

How many days does each take?

Which one goes around an axis

or orbit?