Vocabulary A
forces that are opposite in direction and equal in size
Balanced force
the force exerted by magnets when they attract or repel each other
Magnetism
forces that are opposite in direction and not equal in size
Unbalanced force
A force of attraction that exists between any two masses, any two bodies, any two particles
Gravity
A push or a pull
Force
an applied force made from two objects rubbing against each other
Friction
The transfer of energy by a force acting on an object as it is displaced
Work
A force applied to an object by another person or object
Applied force
A force when an object is at a resting position
Normal force
When something is moving it is in ____
Motion
pulls objects together with mass
Gravitational force
The sum of all the forces acting on an object
Net force
the ability to do work
Energy
a force that is applied by objects in contact with each other
Contact force
a force applied to an object by another body that is not in direct contact with it
Non-contact force
Energy that has the potential to become a different form of energy
Potential energy
The energy of motion observable as the movement of an object or subatomic particle
Kinetic energy
The change of energy from one form to another
Energy transformation
energy stored in an object due to a force that temporarily changes its shape, such as squashing or stretching
Elastic energy
the energy stored in the chemical bonds of a substance
Chemical potential energy