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Reference point Used to determine the and of an object; Positive Speeding up does not move; can refer back to Negative Speeding down Motion The state at which one object’s from another is acceleration changing Input being used Distance The covered by an object in motion; measured in meters (m) Output Force created How long it takes an object to cover a distance; speed = Directly Changing and/or increasing and decreasing together; in distance / ; measured in (s) proportional motion together; follows same pattern The of speed and direction Indirectly Changing and/or increasing and decreasing separately proportional Average speed Total distance traveled/ total time taken to travel the dis- tance The steepness of a line on a graph, equal to its vertical change divided by its horizontal change. Constant speed Non acceleration; remaining at the same speed for an entire distance A unit of that equals the force required to acceler- ate 1 of at 1 meter per per second. Force A push or pull exerted on an object; measured in Newtons (N) The overall force on an object when all the individual forc- es acting on it are added together. Balanced Forces that cause no movement; cancels each other out; all forces that has the same amount of force (N) The product of an object’s mass and velocity. Unbalanced Forces that cause motion; unequal amount of forces (N) forces Law of The rule that in the absence of outside forces the total The amount of in an object. momentum of objects that interact does not change. Momentum Force that acts to oppose movement; slows down or stops The force of on an object at the surface of a Oppose Slow down; go against planet.

Resist Not affected by an

Gravity Forces that attracts all objects to

Magnetic Attracts and opposes metallic substances

Inertia The tendency of an object to resist any change in its motion/rest