What is gravity?

Gravity is a force that attracts a body towards the centre of the earth, or towards any other physical body having mass.

What are the examples of gravity?

The gases in the sun are held together by gravity and gravity is what causes the moon to revolve around the earth.

Does time go faster at the top of the building than at the bottom?

Yes, time goes faster the farther away you are from the earth’s surface compared to the time on the surface of the earth. This effect is known as “gravitational time dilation”. In short, the gravitational field is nothing but the curving of space and time.

How do spaceships create artificial gravity?

A spaceship could achieve artificial gravity by rotating about its axis. To achieve this the radius of the rotation should be large. Additionally, a ship could create artificial gravity by constantly accelerating forwards.

What is the speed of gravity on Earth?

Gravity is measured by the acceleration it gives to free-falling objects. At Earth’s surface, the acceleration of gravity is about 9.8 meters per second.

Does the influence of gravity extend out forever?

The farther away you get from gravitational bodies such as the sun and the Earth, its gravitational effect on you weakens but never completely goes away.