HSC Science Class 11 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Physics

If the distance between the Earth and Sun were to be doubled from its present value, the number of days in a year would be ___________.

The gravitational potential energy of the Moon with respect to Earth is ____________.

Define torque and mention its unit.

What are the conditions in which force can not produce torque?

The work done by the Sun’s gravitational force on the Earth is __________.

If the mass and radius of the Earth are both doubled, then the acceleration due to gravity g'

The magnitude of the Sun’s gravitational field as experienced by Earth is

An object of mass 10 kg is hanging on a spring scale which is attached to the roof of a lift. If the lift is in free fall, the reading in the spring scale is ___________.

State conservation of angular momentum.

Will the angular momentum of a planet be conserved? Justify your answer.

Define the gravitational field.

Write unit of the gravitational field.

What is meant by the superposition of the gravitational field?

Define gravitational potential energy.

Is potential energy the property of a single object? Justify.

Define gravitational potential.

What is the difference between gravitational potential and gravitational potential energy?

Derive the expression for gravitational potential energy.

A particle of mass 5 units is moving with a uniform speed of v = `3sqrt 2` units in the XOY plane along the line y = x + 4. Find the magnitude of angular momentum

Prove that at points near the surface of the Earth, the gravitational potential energy of the object is U = mgh.