Earth's Rotation & Revolution

The video explains how Earth's rotation on its axis causes day and night, while its revolution around the Sun leads to the changing seasons. The Earth's axis is tilted, which results in different parts of the planet receiving varying amounts of sunlight throughout the year, creating seasons. A demonstration using a globe and lamp illustrates these concepts, showing how the Earth's movements affect our perception of the Sun's motion in the sky.

What causes the cycle of day and night on Earth?

• The Earth's revolution around the Sun

• The Moon blocking the Sun

• The Earth rotating on its axis

• The Sun moving around the Earth

How long does it take for the Earth to complete one full revolution around the Sun?

• 12 months

• 365 days

• 30 days

• 24 hours

What is the main reason for the occurrence of different seasons on Earth?

• The speed of Earth's rotation

• The shape of Earth's orbit

• The tilt of Earth's axis

• The distance of Earth from the Sun

In the demonstration, what does the lamp represent?

• The Earth

• The Moon

• The Sun

• A star

What does the demonstration with the globe and lamp illustrate about Earth's movements?

• The Moon's phases

• The Earth's magnetic field

• The Earth's rotation and revolution

• The Sun's movement around the Earth