demonstrate and calculate how unbalanced forces change the speed or direction...

Term Definition
Unbalanced force a set of forces exerted on an object that change the motion of that object; the combined force has size and direction
Speed a measure of how fast something moves; rate of motion
Direction the path that something takes, the path that must be taken to reach a specific place, the way in which something is starting to develop or the way you are facing.
Motion an object's change in position relative to a reference point
Force a push or pull exerted on an object; force has size and direction
Acceleration the rate at which velocity changes over time; an object accelerates if its speed, direction, or both change
Mass is a property of a physical system or body, giving rise to the phenomena of the body's resistance to being accelerated by a force and the strength of its mutual gravitational attraction with other bodies
Net force the combination of all of the forces acting on an object
Constant speed object will cover the same distance every regular interval of time.
Newton the SI unit for force
Friction a force that opposes motion between two surfaces that are in contact
Frictionless not impeded by or creating friction; smooth.

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