Work Energy

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:

The energy possessed by a compressed spring is:

If the mass of an object is doubled and its velocity is halved, what happens to its kinetic energy?

Work done by a centripetal force on a body moving in a circle is:

The unit of work in CGS system is:

Which of the following energy transformations takes place in an electric motor?

A machine does 2000 J of work in 20 seconds. Calculate its power.

What is the relationship between momentum (p) and kinetic energy (K)?

A man carries a heavy suitcase on his head and waits for a bus on a horizontal platform. The work done by him is: