Physics

A boy of mass 50 kg climbs a tree 5 m high. The work done by him is (g=10):

Kinetic energy is never:

Which of the following is an example of renewable energy?

In a battery, which energy conversion takes place?

If the distance is doubled for a constant force, the work done is:

1 kJ is equal to how many Joules?

Which is the ultimate source of energy for the earth?

If velocity is zero, kinetic energy is:

What is the SI unit of work?

The capacity to do work is known as:

Which of the following is the formula for Kinetic Energy?

Work done is said to be zero if the angle between force and displacement is:

One horse power (1 HP) is equal to how many Watts?

Energy stored in a body due to its position or configuration is called:

A boy of mass 50 kg climbs a staircase of height 10 m. What is the work done by him against gravity? (g = 10 m/s^2)

Power is defined as the rate of:

If the speed of a car is doubled, its kinetic energy becomes:

Which of the following is a scalar quantity?

How many Joules are there in 1 kilowatt-hour (kWh)?

When a body falls freely under gravity, its potential energy: