Flashcards on Work, Energy, and Power

Click on the flashcard to see the answer


What is the formula to calculate work?

Work = Force x Distance

What is the SI unit of work?

Joule

Define energy.

The ability to do work or cause a change.

What is the formula for gravitational potential energy?

Gravitational Potential Energy = mass x gravity x height

What is the SI unit of energy?

Joule

What is power?

The rate at which work is done or energy is transferred.

What is the formula for power?

Power = Work / Time

What is the SI unit of power?

Watt

State the law of conservation of energy.

Energy cannot be created or destroyed, only transferred from one form to another.

What is the formula for kinetic energy?

Kinetic Energy = 0.5 x mass x velocity^2

What is potential energy?

The energy possessed by an object due to its position or condition.

What is the formula for elastic potential energy?

Elastic Potential Energy = 0.5 x spring constant x extension^2

Define work.

A measure of the energy transferred by a force acting through a distance.

What is the formula for efficiency?

Efficiency = (Useful output energy / Input energy) x 100%

State the work-energy theorem.

The work done on an object is equal to the change in its kinetic energy.

What is the formula to calculate work?

Work = Force x Distance

What is the SI unit of work?

Joule

Define energy.

The ability to do work or cause a change.

What is the formula for gravitational potential energy?

Gravitational Potential Energy = mass x gravity x height

What is the SI unit of energy?

Joule

What is power?

The rate at which work is done or energy is transferred.

What is the formula for power?

Power = Work / Time

What is the SI unit of power?

Watt

State the law of conservation of energy.

Energy cannot be created or destroyed, only transferred from one form to another.

What is the formula for kinetic energy?

Kinetic Energy = 0.5 x mass x velocity^2

What is potential energy?

The energy possessed by an object due to its position or condition.

What is the formula for elastic potential energy?

Elastic Potential Energy = 0.5 x spring constant x extension^2

Define work.

A measure of the energy transferred by a force acting through a distance.

What is the formula for efficiency?

Efficiency = (Useful output energy / Input energy) x 100%

State the work-energy theorem.

The work done on an object is equal to the change in its kinetic energy.

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