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Lessons 2-9 test
Science test
Term | Definition |
---|---|
Energy | The ability to do work |
Electrical Energy | Energy caused by the movement of electrons. |
Chemical Energy | Potential energy stored in chemical bonds |
Electrode | Cathode and Anode. Part of a battery |
Cathode | Positively charged electrode. Accepts electrons |
Anode | Negative electrode. Gives electrons |
Battery | A device that converts chemical energy to electrical energy |
Electrolyte | A conductive substance it allows electrons to pass through it. Part of a battery |
Dry Cell Battery | A battery that uses a dry electrolyte |
Wet Cell Battery | A battery containing liquid electrolyte |
Mass | The amount of matter in an object |
Surface Area | The measurement of the outer surface of an object |
Force | A push or pull on an object |
Hooke's Law | The stretching or compressing of a spring is equal to the amount of force applied to it |
Weight | A measure of the force of gravity on an object |
Power | A measurement of the rate of doing work per second |
Friction | A force that opposes motion between two surfaces that are in contact |
Work | When a force acts on an object and moves it some distance |