ENERGY

WORK is… a FORCE is… ENERGY is… when a FORCE moves an object the ability to cause a change or do work WORK is… when a FORCE moves an object a FORCE is… a push or a pull

There are two main kinds of energy… POTENTIAL ENERGY KINETIC ENERGY Stored energy due to the interaction between objects or particles Energy in motion or energy that is being used Examples: Examples:

Identify Each of the following as either POTENTIAL or KINETIC energy. zzzz K P K K P

Types of POTENTIAL ENERGY Gravitational Potential Energy energy of an object that has mass and height above Earth’s surface– the greater the height or mass, the greater the potential energy. Elastic Energy Associated with objects that can be stretched or compressed

CHEMICAL ENERGY The energy stored in and released from the bonds between atoms. Energy found in chemical bonds of food, fuel, batteries, etc. NUCLEAR ENERGY The energy stored in and released from the nucleus of an atom. Released when atoms are split or joined together

The energy in an electric current created by the movement of electrons Types of KINETIC ENERGY MOTION KINETIC ENERGY Energy due to the movement of an object ELECTRIC ENERGY The energy in an electric current created by the movement of electrons

SOUND ENERGY Energy carried by sound waves RADIANT ENERGY Energy carried by electromagnetic waves – visible light, gamma rays, and x-rays

Combined Kinetic Energy and Potential Energy MECHANICAL ENERGY Energy to move another object through a combination of motion (kinetic) and position (potential) THERMAL (HEAT) ENERGY Energy of the vibrating particles (kinetic) IN an object and the attraction between the particles (potential)