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Snow Hill Motion
Motion, Forces and Energy Vocabulary
| Question | Answer |
|---|---|
| reference point | a place or object used for comparision to determine if an object is in motion |
| motion | the state in which one object's distance from another is changing |
| speed | the distance an object travels per unit of time |
| average speed | the overall rate of speed at which an object moves |
| velocity | speed in a given direction |
| acceleration | the rate at which velocity changes |
| force | a push or a pull exerted on an object |
| net force | the overall force on an object when all the individual forces acting on it are added together |
| unbalanced force | forces that produce a nonzero net force, which changes an object's direction |
| balanced forces | equal forces acting on an object in opposite directions |
| friction | the force that one surface exerts on another when the two surfaces rub against each other |
| gravity | the force that pulls objects toward each other |
| weight | the force of gravity on an object at the surface of a planet |
| mass | the amount of matter in an object |
| free fall | the motion of a falling object when the only force acting on it is gravity |
| air resistance | the fluid friction produced by objects falling through the air |
| inertia | the tendency of object to resist any change in its motion |
| momentum | the product of an object's mass and velocity |
| kinetic energy | energy that an object has due to its motion |
| potential energy | stored energy thta results from the postion or shape of an object |
| gravitational potential energy | potential energy that depends on the height of an object |
| elastic potential energy | the energy of stretched or compressed objects |
| mechanical energy | kinetic or potential energy associated with the motion or position of an object |
| thermal energy | the total potential and kinetic energy of the particles in an object |
| electrical energy | the energy of electric charges |
| chemical energy | the potential energy stored in chemical bonds |
| nuclear energy | the potential energy stored in the nucleus of an atom |
| electromagnetic energy | the energy of light and other forms of radiation |
| energy transformation | the process of changing one form of energy into another |
| law of conservation of energy | the rule that energy cannot be either created or destroyed |
| matter | anything that has mass and takes up space |
| friction | the force that one surface exerts on another when the two surfaces rub against each other |
| temperature | the measure of the average kinetic energy of the particles in matter |
| fahrenheit scale | the temperature scale in which water freezes at 32 degrees and boils at 212 degrees |
| kelvin scale | the temperature scale on which zero is the temperature at which no more energy can be removed from matter |
| heat | thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature |
| celcius scale | the temperature scale on which water freezes at 0 degrees and boils at 100 degrees |
| conduction | the transfer of heat from one particle of matter to another |
| convection | the transfer of heat by the movement of currents within a fluid |
| radiation | the transfer of heat by electromagnetic waves |
Created by:
LindaSherman
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