Physics Questions

If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is same as that of earth and radius is twice as that of earth is _________________.

What is the fundamental unit of amount of a substance?

If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is same as that of earth and radius is half as that of earth is _________________.

Meter in a vehicle that calculates distance covered by the vehicle is called __________.

What is the value of acceleration due to gravity at the centre of earth?

The absolute refractive index of air is

A body of mass 3 kg accelerates from 10 m/s to 20 m/s in 5 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

Find the kinetic energy (in J) possessed by a body of mass 10 kg moving with a velocity of 5 m/s.