Vocab Flashcards
A location to which another location is compared.
Reference point
An objects location.
Position
A change of position over time.
Motion
A measure of how fast something moves through a particular distance over a definite time period. Speed is a distance divided by time.
Speed
A speed in a specific direction.
Velocity
A quantity that has both size and direction.
Vector
The rate at which velocity changes over time.
Acceleration
A push or a pull;something that changes the motion of an object.
Force
The overall force acting on an object when all of the forces acting on it and combined.
Net force
A scientific law stating that objects at rest remain at rest,and objects in motion remain in motion with the same velocity,unless acted by an unbalanced force.
Newton’s first law
The resistance of an object to a change in the speed or direction of its motion.
Inertia
A scientific law stating that the acceleration of an object increases with increased force and decreased with increased mass.
Newton’s second law
Any force that keeps an object moving in a circle.
Centripetal force
A scientific law stating that every time one object exerts a force on another object,the second object exerts a force that is equal in size and opposite in direction back on the first object.
Newton’s third law