1) What part of the atom causes electricity? a) Proton b) Neutron c) Electron d) Core 2) What is the charge on an electron? a) Positive b) Negative c) Neutral 3) Opposite charges, such as a positive and a negative ... a) Attract each other b) Repel each other 4) Like charges, such as two negative charges... a) Attract each other b) Repel each other 5) When objects gain electrons, they become... a) Positively charged b) Negatively charged c) Electrically charged d) Neutrally charged 6) Positively charged objects have their forces pointing... a) Inward <-- b) Outward --> 7) Negatively charged objects have their forces pointing... a) Inward <-- b) Outward --> 8) Copper, carbon, and steel are examples of ___ material, which means they allow electrons to flow easily. a) Conductive b) Insulative c) Ferromagnetic d) Metal 9) Plastic, wood, and cotton are examples of ___ material, which means they do not allow electrons to flow easily. a) Conductive b) Insulative c) Ferromagnetic d) Metal 10) Steel is less conductive than copper, so it'd be better to use _____ in wires to produce more electricity. a) Steel b) Copper c) Iron 11) To make electricity flow in a circuit, you need conductive wire, a power source, and... a) Something for the electricity to do (light bulb, motor, etc) b) A switch c) A magnet d) Somewhere for the electrons to sleep
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Electricity Review
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