8 CK SCIENCE Electric and Magnetic Mischief - COMPLETE
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Electricity | electric charges that flow through a wire or similar material
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| Magnetism | the force of attraction or repulsion of magnetic materials
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| Electric charge | a property of electrons and protons, electrons carry a negative charge and protons carry a positive charge
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| Electric Current | the flow of electric charge through a material
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| Electric generator | a device that uses motion and converts it into electric current
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| Conductors | materials through which electrons move freely
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| Molten | melted especially by intense heat
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| Alternating current | current consisting of charges that move back and forth in a circuit
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| Step-up transformer | a transformer that increases voltage
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| Electromagnet | a strong magnet that can be turned on and off
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| Insulators | materials through which charges of an electric current are not able to move freely
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| Step-down transformer | a transformer that decreases voltage
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| Electric Current | the flow of electric charge through a material
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| Magnetic poles | the ends of a magnetic object, where the magnetic force is strongest
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| Van Allen Belts | two doughnut-shaped regions that contain electrons and
protons traveling at very high speeds
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| Attract | to pull to or toward oneself or itself (electron-proton interaction)
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| Magnetosphere | the region of Earth's magnetic field confined by solar wind
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| Voltage | the difference in electrical potential between two places
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| Electric generator | a device that uses motion and converts it into electric current
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| Electrical potential | potential energy per unit of electric charge
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| Transformer | a device that increases or decreases voltage
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| Electric motor | a device that use electric current to produce motion
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| Navigation | method of determining position, course and distance traveled
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| Magnetic Compass | a device that has a magnetized needle that can spin freely, a compass needle always points north
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| Electric Current | the flow of electric charge through a material
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| Ohm's Law | ohms (resistance) = volts (voltage) / amps (current; R=V/I or I = V/R or V= IR
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