Force and Energy Glossary


Friction:  the resistance that occurs when two surfaces rub against each otherGravity:  the force which causes any two objects to pull towards each other.

Drag:  the resistance to motion caused by a gas or a liquid.

Thrust:  the force which moves a plane forward.


Potential energy:  energy stored by an object.

Kinetic energy:  the energy of a moving object.

Elastic energy: ability of a material to bend and bounce.

Other Terms 

Pressure: occurs when a force acts on a certain areaTrajectory: the path of an object as it moves through the airVariable: factors that effect the result of an experimentVelocity: the speed of an object in a certain direction