Work & Energy

Work is a force MOVING something accross a distance. The equation for work is F(force in newtons or lb) x d(distance in meters or feet) = W(work in joules or ft lb)

Example: A person lifts a box into a truck, the distance from the ground to the truck multiplied by the force it took them to lift it would equal the work done.

Energy is something or someones ability to do work.

Examples: A squirrel has the energy to climb a tree.
A dog has the energy to chase the mailman. A student has the energy to walk between classes. Airplanes have the energy to fly. etc.

Potential energy is STORED energy.

Examples: The stored energy in a battery. The stored energy in food. The stored energy in muscles. The stored energy in gasoline. etc.

Kinetic energy is the energy of MOTION.

Examples:A shopping cart rolling away. A car being driven. A person walking. A cat catching a bird. etc.

Mechanical energy is Potential energy and Kenetic energy added together, an objects postition and motion.

Example: A ball being thrown in the air (kinetic), stopping for a short amount of time to change direction due to gravity (potential), falling back down (kinetic), being caught (potential).

Chemical energy is and energy that is releases through chemical reaction.

Example: When you add vinegar to baking soda chemical energy is released causing a chemical reaction.

Sound energy is the energy given off by an objects vibrations.

Examples: singing, talking, playing musc, laughing,etc.

Electrical energy is energy that is available through the flow of electric charge through a conducter.

Examples: wires, power outlets, computers, tv's, ipads, etc.

Radiant energy is energy that is transmitted in the form of radiation, it is energy that exists in the absence of matter.

Examples: a lightbulb, a lamp, the sun, etc.

Light energy is a luminous energy that is the perceived energy of light, also called the quantity of light.

Heat energy is a form of energy transferred by a change in temperature.

Thermal energy is a part of an objects potential and kinetic energies contibuting to its temperater.

Examples: The sun, a stove, an oven, a heat lamp, a microwave, a grill, etc.

Nuiclear energy is the energy released by a nuclear reaction.

Example: When an atom bomb goes off, the energy in the atoms is released due to a nuclear reaction, resulting in a giant explosion.