Physics

The density of an object is 800 kg/m^3. In which of the following will it float?

In a vacuum, a feather and a coin are dropped from the same height. Which one hits the ground first?

The value of 'g' at the poles of the Earth is approximately:

Which force is responsible for holding the solar system together?

If the area of contact is halved, while keeping force constant, the pressure will:

What is the weight of a body of mass 1 kg on the surface of the Sun? (g_sun = 274 m/s^2)

What is the weight of an object of mass 50kg in a lift falling freely?

The unit of Upthrust in SI system is:

When an object is immersed in a liquid, its apparent weight is:

A hydrometer is used to measure:

Pascal's Law is valid for:

The force of gravitation between two bodies is F. If the mass of one body is doubled, the force becomes:

Which of the following describes the state of a body when the upthrust is equal to its weight?

If a body of mass 5kg is moved from the equator to the pole, its mass will:

The reason why we can't walk easily on a sandy beach is:

The density of air is approximately:

An object weighs 10N in air and 8N when fully immersed in water. The upthrust is:

If the radius of Earth was double its present value, and its mass remained the same, what would be the weight of a 60 kg person?

A hydraulic lift has pistons of radii 1cm and 10cm. What is the force multiplier?

Newton's Law of Gravitation is called universal because: