electrical craft helper exam questions with answers

electrical craft helper exam questions |\ |\ |\ |\ |\




with answers |\




a molecule of matter can be divided chemically into smaller
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particles called? - CORRECT ANSWERS ✔✔atoms
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matter consisting of all the same kind of atoms is called an? -
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CORRECT ANSWERS ✔✔element |\ |\




matter consisting of two or more different kinds of atoms is
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called a? - CORRECT ANSWERS ✔✔compound
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the negative charge of a single electron is called a? - CORRECT
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ANSWERS ✔✔unit electrical charge |\ |\ |\




most of the mass of an atom is in the? - CORRECT ANSWERS
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✔✔nucleus


when an atom gains an electron, it is called? - CORRECT
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ANSWERS ✔✔negative ion |\ |\




copper is a good conductor, because the copper atom loosely
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holds it's? - CORRECT ANSWERS ✔✔valence
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gold and silver are good conductor of electricity, because the
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outer orbits have? - CORRECT ANSWERS ✔✔one electron
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, when teo negatively charged rods are brought together, they? -
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CORRECT ANSWERS ✔✔repel each other |\ |\ |\ |\




one ampere is equal to? - CORRECT ANSWERS ✔✔1 coulomb
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flowing per second |\ |\




what happens when two unlike materials are rubbed together
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and then separated? - CORRECT ANSWERS ✔✔one will be
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positive and the other negative |\ |\ |\ |\




connecting two or more metallic objects with a wire or metal |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


strap is called? - CORRECT ANSWERS ✔✔bonding
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grounding minimizes the voltage difference between an object
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and? - CORRECT ANSWERS ✔✔ground
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humidity has no effect in controlling a static charge on the
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surface of? - CORRECT ANSWERS ✔✔only liquids.
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a static charge is generated by liquids when the liquids are? -
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CORRECT ANSWERS ✔✔moving and contact other materials
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the charges on the surface of a liquid in a container can be made
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harmless if the container is? - CORRECT ANSWERS ✔✔purged
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