motion and machines

change of an objects position

Motion

ability to make things move or change

energy

stored energy

potentional energy

energy due to motion

kinetic energy

a push or pull applied to an object to get it to move or stop

force

A fixed or moving object or location

reference point

How far an object is moved?

distance

How long it takes to move an object ?

Time

The rate or how fast the object is being moved ?

speed

distance divided by time=

Speed

Speed x time= ?

Distance

Refers speed and direction. This can change if the speed or the direction changes

Velocity

When ana object speeds up or slows down or changes direction

Exceleration

makes an object move

force

Makes an object slow down and stop

friction

The Ability of change speed or stop depends on its mass and velocity (speed and direction)

Momentum

The amount of matter in an object

Mass

Weight?

The measure of the gravatational force of an object

A baseball player throwing a ball vs. a child throwing a ball is an example of what?

Momentum

Laws of Motion ?

3 Laws formulated by Sir Isaac Newton, an English Scientist

The Laws of Motion were based on what?

Based on the study of how and why things move

What is the first law of motion?

An object at rest will remain at rest. An object in motion will continue moving in a straight line at a constant speed until an outside force acts on it.

Inertia?

an objects ability to resist a change in motion

An object's acceleration depends on the size of the force acting on it and on the mass of the object

Second Law of Motion

Second Law of Motion is affected by____? (3 things)

1) the mass of the object
2) the size of the force
3) the direction of the force

Third Law of Motion

for every action there is an equal and opposite reaction.
1st is the action
the force pushes or pull back and that is reaction force.