sábado, 21 de agosto de 2010

Vocabulary#1: Newtons Laws

Force:A puch or pull extered by one objecton another.

Friction:A force thet opposes the motion of an object in cntact with a surface.

Drag force: A force that opposes the motion of an  object througha liquid or gas.

Gravity:A force of of attraction thar exists between all objects with mass

Net force: The combined effect of all the forces acting on an object.

Balance force: Forces that cancel each other out when acting together on a single object.

Unbalance force:Forces that do not cancel each other out when acting together on a single object.

Inertia: The tendency of an  object to oppose a chang in motion.

Momentum: The mass of an object multiplied by its velocity.

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