Science 8.5

collision

When two or more bodies collide, their momentum and energy are transferred. (strong push or pull)

energy

the ability to do work or cause change

law of conservation of energy

energy cannot be created or destroyed and only transformed from one form to another

kinetic energy

the energy an object posses due to its motion

potential energy

the energy stored in an object due to its position, state, or motion

sound energy

a form of mechanical energy formed by the vibration of an object

thermal (heat) energy

The total kinetic energy of the random motion of atoms and mollecules inside a system or substance

contact force

any push or pull when two objects are in direct physical contact with eachother

non contact force

a push or pull that acts on an object from a distance without any direct physical touch

gravity

a natural phenomenon by which all things with Mass or energy are pulled toward one another

Newtons

The standard international system of units measurement for force

Balanced forces

when the net force acting on an object is 0

unbalanced force

when a push or pull is acting on an object that does not have an equal and opposite force to cancel it out

net force

the total amount of force pushing or pulling on an object

any change In shape size or volume of an object, material or rock layer caused by external forces, stresses, temperature changes or chemical reactions.