Revision Chap 3: Gravitation

Gravitational force known as

• Attraction force

• Universal force

Gravitational force is directly proportional to the product of masses of two bodies and inversely proportional to the square of the distance between the centers of the two bodies

• Kepler's Law

• Newton's Universal Law of Gravitation:

• Gravitation Law

Gravitational force is universal force that acts between any two bodies in the universe and _____________________

• both bodies experience same magnitude of gravitational force

• both bodies will moving in ellipse shape

r in formula gravitation is ______

• distance between the centre of first and second body

• distance between the surface of first and second body

The larger the mass of the body, the _________ the gravitational force

• smaller

• larger

The further the distance between the bodies, the _________ the gravitational force

• greater

• smaller

On surface of a planet, gravitational force is _____ to weight

• equal

• greate

There is force acting on the object in direction towards the center of the circle (orbit)

• Centripetal Force

• Orbital Force

In centripetal force experiment, tension are represent for

• weight

• radius

All planets move in elliptical orbits with the Sun at one focus.

• Kepler's First Law

• Kepler's Second Law

• Kepler's Third Law