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Forces
Term | Definition |
---|---|
Force | A push or pull |
Newton | The SI unit of force. It is to equal the force that would give a mass of one kilogram an acceleration of one meter per second. |
Net Force | Net Force is the overall force acting on an object. |
Unbalanced forces | It's when two forces acting on an object are in different size, causing a change in motion. |
balanced forces | Two forces acting in same directions in an object , and equal in size. |
Friction | The resistance that one surface or object encounters when moving over another. |
Static friction | Lacking into movement, action, or change. |
Sliding friction | Moving along a smooth surface while maintaining continuous contact with it. |
Fluid friction | A substance that has no fixed shape, liquid. |
gravity | the force that attracts the body toward the center of Earth. |
mass | typical large body of matter with no definite shape. |
weight | mass or quantity of matter contained by it giving it downward force. |
free fall | The motion of a falling when the only force is acting on its gravity. |
air resistance | The fluid friction experienced by objects falling through the air. |
projectile | An object that is thrown. |
compression | An elastic force that squeezes or pushes molecules in matter together. |
tension | An elastic force that stretches or pulls on the molecules in matter. |
inertia | The tendency of an object to resist any change in its object. |
momentum | The product of an object's mass and velocity. |
law of conservation of momentum | The rule that in the absence of outside forces the total momentum of objects that interact does not change. |
satelite | Any object that orbits around another object in space. |
centripetal force | A force that causes an object to move in a circle. |