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toybox
Newton's toy box
| Term | the rate of change in velocity |
|---|---|
| action force | a force exerted on a subject |
| air resistance | the force of air pushing against a moving object |
| conservation of energy | the amount of energy in a closed system remains constant over time |
| conservation of momentum | for two objects subject only to their mutual interactions, the total momentum of the objects remains constant in time. P=mv. This is equivalent to Newton's third law of motion |
| elastic potential energy | the term used to describe the energy stored in a compressed or stretched object (usually a spring or rubber band) |
| energy | the ability to do work (or to produce change) |
| force | a push or pull |
| freefall | the condition of an object falling in a gravitational field |
| friction | a resistance force opposing motion |
| gravitational potential energy | the energy possessed by an object that can fall |
| gravity | the force of attraction between masses |
| inertia | the property by which an object tends to remain at rest or in uniform straight-line motion. |
| kinetic energy | the energy possessed by an object because of its motion |
| mass | the amount of matter an object contains |
| microgravity | almost weightless conditions; only very small forces remain. This is the term used by NASA to describe the in-orbit environment |
| momentum | the product of an object's mass multiplied by its velocity. Momentum is conserved quantity within a closed system. |
| Newton's first law of motion | an object will remain at rest or in uniform motion unless acted on by an unbalanced external force |
| Newton's second law of motion | the acceleration of an object is inversely proportional to its mass and directly proportional to the resultant external force acting on it (F=ma). A greater unbalanced force causes a greater acceleration of an object in the direction of the force. The m |
| Newton's third law of motion | Forces always occur in pairs. If object A exerts a force on Object B, an equal but opposite foce is exerted by Object B on Object A. For every action there is an equal and opposite reaction. |
| parabola | One possible path of an object falling freely in a gravity field. A tossed ball follows a parabolic arc |
| potential energy | the energy required to place an object in a position. This energy is stored in the object until the object moves |
| reaction force | the force exerted by an object experiencing an action force. The reaction force is equal to the action force, but in the opposite direction |
| speed | the distance traveled by an object divided by the time required to cover the distance |
| velocity | a measure of the speed and direction of an object's motion |
| weight | the strength of the gravity force pulling down on an object. |
| acceleration | the rate of change in velocity |
| gravity support force | the force that opposes gravity |
Created by:
ctalley
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