Universal Law of Gravitation
The centripetal force required for Earth's motion around the Sun is provided by the__________between them.
Ocean tides are caused because of______.
Compare the gravitational forces exerted by the Sun and the moon on the Earth. Which one exerts a greater force on the Earth? (Given: mass of the Sun, Ms=4×1031kg, mass of moon, Mm=6.3×1022kg, distance between the Sun and the Earth, rse=1.3×1012m and the distance between moon and the Earth, rme =4.5×108m.
Moon exerts a greater force and it is about 76 times the force due to the Sun
Sun exerts a greater force and it is about 25 times the force due to moon
Both exert equal force on the Earth
Sun exerts a greater force and it is about 76 times the force due to the moon
The atmosphere is held to the Earth due to:
Gravitational force of Earth
Gravitational force of Moon
Gravitational force of Sun
Rotation of Earth
The force of gravitation between two bodies in the universe does not depend on:
the distance between them
the product of their masses
the sum of their masses