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Forces and Motion
| Term | Definition |
|---|---|
| Motion | Displacement of an object over a period of time |
| Speed | A measure of how fast something is moving |
| Force | A push or pull exerted on an object in order to change the motion of the object |
| Net Force | The combination of all of the forces acting on an object |
| Newton | the SI unit for force (symbol N) |
| Friction | A force that opposes the motion of an object |
| Gravity | The force of attraction between all matter |
| Mass | The measure of the amount of matter in a body |
| Weight | A measure of the gravitational force exerted on an object |
| Force | A push or pull |
| Velocity | The speed of an object in a particular motion |
| Acceleration | The rate at which velocity changes over time |
| Inertia | Property of matter that makes matter resist a change in motion |
| Kinetic Energy | Energy associated with moving bodies |
| Potential Energy | Stored energy that can be released |
| Mechanical Energy | The energy that is possessed by an object due to its motion or due to its position |
| Energy Conservation | Reducing energy consumption through using less of an energy service |
| Work | The product of a force and the distance through which it acts |
| Electrical Circuit | A closed loop through which charges can continuously move |
| Energy | The ability to do work |
| Inclined Plane | A simple machine that is a straight, slanted surface which facilitates the raising of loads |
| Pulley | A simple machine that consists of a wheel over which a rope, chain or wire passes |
| Lever | A simple machine that consists of a bar that pivots at a fixed point called a fulcrum |
| Wheel and Axel | A simple machine consisting of two circular objects of different sizes |
| Wedge | a simple machine that is made up of two inclined planes that move |
| Screw | A simple machine that consists of an inclined plane wrapped around a cylinder |
| Mechanical Advantage | A number that tells how many times a machine multiplies force |
| Mechanical Efficiency | A quantity, usually expressed as a percentage, that measures the ratio of work output to work input |
Created by:
Wattsr
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