Changes in Force and Motion

A set of flashcards covering key vocabulary related to the concepts of force and motion.

Acceleration

A change in motion caused by an unbalanced force acting on an object; includes increasing speed, decreasing speed, or a change in direction.

Direction

A straight path that an object can move along.

Force

A push or pull that can change the motion of an object.

Frame of Reference

A system that uses coordinates or background objects to establish position or to measure movement of a point in space.

Mass

A measure of how much matter is present in a substance.

Motion

The change in an object’s position with respect to time and in comparison with the position of other objects used as reference points.

Net Force

The sum of all the forces acting on an object.

Newton (N)

Unit of measurement for force.