The product of an object's mass and velocity.
momentum
a physical quantity that has both magnitude and direction
vector
law stating that the total momentum of a group of objects stays the same unless outside forces act on the objects.
Law of Conservation of Momentum
the speed and direction of an object at a particular instant
instantaneous velocity
a force which is applied to an object by a person or another object
Applied Force
A result of a force moving an object a certain distance.
Work
The state of an object when it is not in motion
at rest
the state of motion of an object does not change as long as the net force acting on the object is zero.
Newton's 1st Law of Motion
the constant velocity of a falling object when the force of air resistance equals the force of gravity
terminal velocity
a push or pull that acts on an object
Force
The rate at which velocity changes; calculated by dividing the change in velocity by the change in time.
Acceleration
the effect of a force acting on an object over time. Calculated by multiplying mass (m) by the change in velocity (△v).
impulse
the acceleration of an object is equal to the net force acting on it divided by the object's mass
Newton's 2nd Law of Motion
A Speed in a given direction
Velocity
the two equal but opposite forces that exist when two systems act on each other
action-reaction force pair
the rate at which work is done
Power
Distance and direction of an object's change in position from the starting point.
displacement
whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first object.
Newton's 3rd Law of Motion
two equal forces acting in opposite directions on an object
balanced force
the tendency of an object to resist a change in its motion
inertia
a physical quantity that has magnitude but no direction.
scalar
the motion of an object toward the Earth because of gravity
freefall
a system of objects that are not moving with respect to one another
frame of reference
two or more forces that are not equal and opposite of one another; can cause change in motion
unbalanced force