Gravitation Mock Tests

A body of mass 5 kg is kept on a horizontal surface. The force it exerts on the surface is: (g = 10 m/s²)

The escape velocity from Earth is 11.2 km/s. A planet has twice the radius and half the mass of Earth. The escape velocity from this planet is:

Two satellites A and B orbit the Earth in circular orbits of radii R and 4R respectively. If satellite A has orbital speed v, the orbital speed of satellite B is:

The value of gravitational force on the Moon is approximately what fraction of that on Earth?

The escape velocity from the Earth is 11.2 km/s. A planet has twice the radius and the same mean density as the Earth. The escape velocity from this planet is:

A satellite orbits very close to Earth surface. Its orbital velocity is approximately:

A satellite orbits the Earth in a circular orbit. If the radius of the orbit is doubled, its orbital velocity becomes:

The escape velocity from Earth is 11.2 km/s. The escape velocity from a planet with 4 times Earth's mass and twice Earth's radius is: