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McC TAKS Objective 4
McC TAKSObjective 4
| Question | Answer |
|---|---|
| energy | the ability to do work |
| work | the product of force and the distance over which it moves |
| motion | a constant change in the location of a body |
| speed | Distance traveled divided by the time needed to travel that distance |
| wave | a disturbance that moves through a medium |
| wavelength | The length of a single cycle of a wave, as measured by the distance between one peak or trough of a wave and the next |
| amplitude | the maximum height of the wave crest above the rest position or the maximum depth of the wave trough below the rest position |
| frequency | the number of waves that pass a single point in a given amount of time |
| kinetic energy | Energy of motion |
| potential energy | Stored energy |
| weight | the force of gravity acting on a mass |
| force | A push or a pull; has a size and direction |
| friction | Any force that resists motion |
| unbalanced force | Unequal forces acting on an object – results in a change in the object’s motion in the direction of the larger force |
| balanced force | Describes forces that are equal but opposite in directions; cancel each other out and no change in motion occurs |
| acceleration | Change in velocity divided by the amount of time needed for that change to take place; speeds up, slows down or changes direction |
| thermal energy | The total energy of all the particles in a sample of matter |
| chemical energy | Energy produced by a chemical reaction or chemical change |
| mechanical energy | the energy which is possessed by an object due to its motion or due to its position; either kinetic or potential energy |
| electrical energy | Energy of electric charges or electric current |
| pulley | a simple machine that can change the direction of force |
| lever | a simple machine made with a bar free to move about a fixed point called a fulcrum |
| velocity | speed and direction of a moving body; average velocity can be calculated by dividing displacement by time |
| distance | the entire path an object travels |
| gravity | force of attraction between all objects in the universe |
| inertia | an object's tendancy to remain at rest or keep moving with constant velocity |
| Newton's Laws | laws of motion first stated by Isaac Newton |
Created by:
MCJH
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