Acceleration
The rate at which an object changes speed or direction
Balanced Force
when two or more forces act upon an object so as to exactly counteract each other
Unbalanced Force
is a force that changes the position, speed or direction of the object to which it is applied
Centripetal force
is a force that pushes an object in an inward direction
Centrifugal Force
is a force that pushes an object in an outward direction
Energy
the ability to do work
Force
is a push or a pull acting upon an object
Friction
is a force that resists the motion of an object
G
is a unit of acceleration equal to the acceleration caused by gravity
Gravity
Any two objects with mass attract each other
Inertia
is a tendency of an object to resist change in its state of motion
Kinetic Energy
is the energy possessed by an object because of its motion
Mass
is a measurement of the amount of material in a object
Momentum
pertains to the quantity of motion that an object possesses
Period
motion that repeats itself in cyclic fashion
Potential Energy
is the energy possessed by an object because of its height above the ground
Speed
is a measurement of how fast an object is moving
Velocity
refers to the speed and direction in which an object moves
Weight
is a measurement of the gravitational force acting on an object
Weightlessness
is a sensation in which a person no longer feels an external force acting upon their bodies
Work
measure of energy transfer that occurs when an object is moved over a distance by an external force
Newton's First Law of Motion
an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force
Newton's Second Law of Motion
the greater the mass of an object, the more force it will take to accelerate the object
Newton's Third Law of Motion
for every action, there is an equal and opposite reaction