Work, Power, Energy

Front

What is Work?

Back

Work is done when a force acts on an object and the object moves in the direction of the force.

Front

What is Kinetic Energy?

Back

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

Front

What is the formula for calculating Kinetic Energy?

Back

KE = 1/2 mv²

Front

What is the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that energy can be transformed from one form to another, but the total amount of energy in a closed system remains constant.

Front

What is Power?

Back

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

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).

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 is Gravitational Potential Energy?

Back

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

Front

How do you calculate the work done by a constant force?

Back

Work done (W) is calculated as W = Fd cos(θ), where F is the force applied, d is the distance moved in the direction of the force, and θ is the angle between the force and the direction of motion.

Front

What is the formula for calculating Work?

Back

W = Fd cos(θ)