Work, Power, & Energy

Front

What is Work?

Back

Work is done when a force causes an object to move in the direction of the force. It is calculated as Work = Force x Distance.

Front

What is Power?

Back

Power is the rate at which work is done or energy is transferred. It is calculated as Power = Work / Time.

Front

What is Energy?

Back

Energy is the ability to do work. It exists in various forms, including kinetic energy, potential energy, thermal energy, etc.

Front

What is Kinetic Energy?

Back

Kinetic Energy (KE) is the energy of an object due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What is Potential Energy?

Back

Potential Energy (PE) is the energy stored in an object due to its position or height, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

How does height affect Potential Energy?

Back

The higher an object is, the more potential energy it has, as potential energy is directly proportional to height.

Front

What is the relationship between Work and Energy?

Back

Work done on an object results in a change in its energy. If work is done on an object, its energy increases.

Front

What happens to Kinetic Energy when speed increases?

Back

Kinetic Energy increases with the square of the speed. If speed doubles, kinetic energy increases by a factor of four.

Front

What is the formula for calculating Work?

Back

Work = Force x Distance x cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is the unit of Work?

Back

The unit of Work is the Joule (J), which is equivalent to one Newton meter (N·m).