Understanding Planetary Shapes and Earth's Rotation

The video explains why planets, including Earth, are round due to gravity pulling equally from all sides, creating a roughly spherical shape. It highlights that planets are not perfectly round but are oblate spheroids, with Earth's equatorial diameter being larger than its polar diameter due to its rotation at 1674.4 km/h.

What force is responsible for the round shape of planets?

• Gravity

• Magnetism

• Electromagnetism

• Nuclear force

How does gravity affect the shape of a planet?

• It pushes from the center to the edges.

• It pulls equally from all sides.

• It pulls from the edges to the center.

• It has no effect on the shape.

What is the shape of a planet due to gravity's pull?

• A triangle

• A three-dimensional circle

• A square

• A perfect circle

Why is Earth's equatorial diameter larger than its polar diameter?

• Because of its magnetic field

• Due to its rotation on its axis

• Because of its atmosphere

• Due to its distance from the sun

What is the approximate speed of Earth's rotation on its axis?

• 1000 km per hour

• 1500 km per hour

• 1674.4 km per hour

• 2000 km per hour