Unit 4 and 5: Forces and Motion and Newton's Laws
An object's change in position relative to a reference point.
A location or object that you can use to determine if an object is moving.
The change in position of an object.
A measure of how far an object moves in a certain amount of time
Speed in a given direction
A quantity that has both size and direction.
Change in velocity (ANY change in speed or direction)
A push or a pull
The SI unit for force
The combination of all forces acting on an object
forces acting on an object that combine and form a net force of zero; cause no change in motion
Forces that combine to produce a net force that is not equal to zero and cause the a change in speed and/or direction.
Newton's Laws of Motion
A set of laws the describes the relationship between force, matter and motion
Resistance of an object to a change in its motion
A force that opposes motion between two surfaces that are in contact
The force that a surface exerts on an object that is pressing on it
The amount of matter in an object
The attractive force between any two things that have mass
the force of gravity on an object
forces that involve direct contact