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18 Cards in this Set
- Front
- Back
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North, South
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The two kinds of magnetic poles.
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Positive, Negative
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The two kinds of electric charge.
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Electric Charge
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A fundamental property of matter that can be either positive or negative.
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Static Electricity
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A tiny imbalance between positive and negative charge on an object.
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Electric Current
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A flow of tiny particles that carries electrical energy in wires and machines. The particles (usually electrons) are typically much smaller than atoms and can flow around and in between atoms even in solid matter.
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Ampere
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The unit of electrical current.
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Volt
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The unit of electrical potential energy.
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Electric Circuit
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A complete path through which electric current can flow.
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Resistance
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Determines how much current flows for a given voltage. Higher resistance means less current flows.
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Ohm
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The unit of resistance. 1 ohm allows 1 amp to flow when a voltage of 1 volt is applied.
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Conductor
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A material with a low electrical resistance. Metals such as copper and aluminum are good conductors.
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Insulator
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A material with a high electrical resistance. Plastic and rubber are good insulators.
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Magnetic
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The property of creating or responding to forces from magnets.
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Permanent Magnet
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A material that remains magnetic without outside energy being applied.
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Magnetic Field
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The influence created by a magnet that exerts forces on other magnets.
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Electromagnet
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A magnet made with wires and electric current.
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Ferromagnetic Metal
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A material, like iron, which has strong magnetic properties.
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Electromagnetic Induction
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Using a moving magnet to current electric current or voltage.
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