U3 Energy

S8P2

Energy

is the ability to do work and cause change

The Law of Conservation of Energy

Energy cannot be created or destroyed. It only changes form.

Potential Energy

Stored energy due to position, shape, or chemical make up.

Kinetic Energy

The energy of Motion

Gravitational Potential Energy

The energy an object has due to the position of above the earth.

Chemical Potential Energy

The energy that is stored in the chemical bonds of a substance.

Elastic Potential Energy

The energy that is due to the shape of an object.

Mechanical Kinetic Energy

The energy involved in moving objects

Nuclear Energy

The energy released when the nucleus of an atom is split or fused.

Electrical Energy

movement of electrons

Thermal Energy

A measure of the number of particles and how fast they are moving, other wise known as heat.

Convection

is the transfer of heat through the motion of liquids and gasses

Radiation

is the heat transfer through electromagnetic waves

Conduction

is the transfer of heat through the collision of atoms by direct contact.

Insulators

resist the flow of energy.

conductors

materials that transfer energy easily

Energy Transformation: toaster oven plugged into wall

electrical --> thermal

Energy Transformation: Plant making glucose

Solar --> chemical

Energy Transformation: Student eating lunch then running laps at gym

Chemical --> Mechanical

Energy Transformation: Windmill sending power to power plants

Mechanical --> Electrical

Two things that affect Potential Energy

Mass and Height

Two things that affect Kinetic Energy

Mass and Speed

Unit for Energy

Joules