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forces vocabulary 1
vocbulary
| Question | Answer |
|---|---|
| momentum | the product of an object's mass its velocity |
| Formula for momentum | m=pv |
| law of conservation of momentum | the total mo |
| force | a push or a pull that gives energy to an object |
| units of force | forces are measured in Newtons; N |
| Net force | the total of all the forces acting on an object |
| Inertia | the tendency of matter to resist a change in it's motion. |
| Balance Force | the net force acting on an object is zero |
| unbalanced forces | the net force acting on an object is not zero |
| Magnitude | a force that one surface exerts on another when the two surfaces are in contact withe each other |
| static friction | friction between non-moving objects |
| kinetic friction | friction between moving objects |
| sliding friction | friction between objects that slide (rub) against each other |
| rolling friction | occurs when an object rolls over surface |
| fluid friction | occurs when an object moves through a fluid or a gas |
| Newton's First law of motion | objects at rest will stay at rest & objects in motion will stay in motion at a constant velocity unless acted on by an unbalanced force |
| Newton's second law of motion | the net force acting on an objects is a equal to the product of the object's mass & acceleration |
| Newtons third law of motion | for every action there is a reaction force that is equal, but acts in the opposite direction |
| law of universal gravitation | all objects in the universe are attracted to each other; strength of attraction depends on the objects' masses and distances from each other |
| Freefall | the the motion of an object when GRAVITY is the only force acting on it |
| weight | a measure of the force of GRAVITY on an object |
| mass | the amount of matter in something |
| centripetal force | the force that is pulling an object in circular motion towards the center of the circle |
| geosynchronous orbit | occurs when the an object orbits another object at a rate equal to the 2nd object's rate of ratation |
Created by:
derick-gavin
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