Energy

-”the ability to cause changthe ability to cause changee””

-In other words -In other words ““the ability the ability to do workto do work””

Potential & Kinetic Potential & Kinetic EnergyEnergy

Gravitational Potential energyGravitational Potential energy is energy energy stored stored within an within an object due to its position.object due to its position.

ExampleExample: a yo-yo with the string completely wound up.

Kinetic energyKinetic energy is moving energy energy (energy that an object has because of its motion).

ExampleExample: a yo-yo that is moving.

Potential & Kinetic Potential & Kinetic EnergyEnergy

Gravitational Potential energyGravitational Potential energy is energy energy stored stored within an object due within an object due to its position.to its position.

So, the higher up an object is, the more potential energy it has

Also, the greater the mass an object has the more PE it has- it has more potential when it is falling

Potential & Kinetic Potential & Kinetic EnergyEnergy

Kinetic energyKinetic energy is moving energy energy (energy that an object has because of its motion).

So, the FASTER the object is moving the more KE energy it has.

Also, the greater the mass an object has the more KE it has-Just like PE

Energy• What happens on a swing or with a

pendulum in terms of PE and KE

Energy• What happens on a roller coaster in

terms of PE and KE?

Law of Conservation of Energy

Energy can not be created nor destroyed but it can change form.

This is in an isolated system.

Examples???Who Trusts SCIENCE?!