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# IPC Forces

### Forces

TermDefinition
Accuracy The closeness of a measured value to a standard or known value.
Precision The closeness of two or more measurements to each other.
Net Force The sum of all the forces acting on an object.
Acceleration A change in speed and/or position.
Mass A measure of the amount of matter contained in a physical body.
Momentum A measure of the motion of a body equal to the product of its mass and velocity.
Conservation of Momentum For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.
Inertia The tendency of an object to resist a change in motion.
Unbalanced Force The net force of an object does not equal zero which results in a change in the motion of the object.
Balanced Force The net force on an object is zero and the object’s motion does not change.
Acceleration due to Gravity The acceleration which is gained by an object because of the gravitational force. The unit for this measurement is the unit of time squared, for example, 8 m/s2.
Gravitational Force A force of attraction between two objects with mass.
Action Force The force acting in one direction.
Reaction Force The force acting in the opposite direction.
Created by: tneal1