Newton
An object at rest stays at rest and an object in motion stays in motion with the same velocity.
Newton's First Law (Inertia)
Is when a moving object increases speed, decreases speed or changes direction.
Accelerartion
The amount of matter in an object.
Mass
The force that one surface exerts on another surface when the surfaces come into contact with each another.
Friction
-Equal- forces acting on an object in opposite directions.
Balanced Forces
Acceleration of an object is dependent upon two variables- the net force acting upon the object and the mass of the object. As the force is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.
Newton's Second Law
The overall rate of speed at which an object travels or moves; calculated by dividing the total distance an object travels by the total time.
Average Speed
A push or pull exerted on an object. It is described by its strength and direction in which it acts.
Force
It comes into play when a body is forced to move along a surface but the movement does not start(no motion).
Static Friction
Forces that produce a nonzero net force, which changes an object's motion.(Not equal)
Unbalanced Force
For every action, there is an equal and opposite reaction.
Newton's Third Law
The state in which one object's distance from another object is getting closer or further apart.
Motion
The product of an object's mass and velocity.
Momentum
This occurs when two objects slide over each other.
Sliding Friction
The distance an object travels per unit of time.
Speed
Developed laws of motion, a theory of gravity and believed that comets sustained life on earth and other planets.
Sir Isaac Newton (1642-1727)
Speed in the given direction/with direction.
Velocity
The force that pulls all objects towards each other.
Gravity
When a body moves in a fluid or in the air then there exists a resistive force that slows down the motion of the body.
Fluid Friction
The ability to do work or cause change.
Energy
A particle attracts every other particle in the universe using a force. The greater the mass, the greater the attraction. The greater the distance, the weaker the attraction.
Newton's Law of Universal Gravitation
The greatest velocity a falling object can achieve.
Terminal Velocity
This is the motion of a body moving through the atmosphere with gravity as the only force acting on the body.
Free Fall
A force that slows down the motion of a rolling object.
Rolling Friction
A place or object used for comparison to determine if an object is in motion.
Reference Point