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24 Cards in this Set
- Front
- Back
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Positive charge particles are called... |
Protons |
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A particle with no charge is called... |
Neutron |
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Negative charge particles are called... |
Electron |
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Number of electrons in a conductor? |
3 or less valence electrons |
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Number of electrons in an insulator? |
5 or more valence electrons |
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How many electrons in a semi conductor? |
4 valance electrons |
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What are the six basic methods of producing electricity? |
– Magnetism – Chemical reaction – Pressure piezoelectric – Heat – Friction – Light |
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The five basic effects of electricity are? |
– Magnetism – Chemical reactions – Pressure – Heat – Light |
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Electrical potential is... |
The amount of work energy needed to move a unit of electric charge from one reference point to another. |
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The formula for current is |
Current(I)=coulombs(C)/seconds(S) |
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Amperes are defined as... |
One coulomb worth of charge moving past a point in a second. |
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Ohms law is... |
E/I*R |
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A closed circuit is... |
A circuit with an unbroken path. |
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An open circuit is... |
A circuit with an interrupted path. |
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A short circuit is... |
An unintended path. |
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The three types of circuits are |
Open Closed Short |
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The formula for power(W)? |
P=E x I |
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nucleus of an atom is formed by combining which two subatomic parts |
Protons and neutrons |
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What are VALENCE electrons? |
Electrons on the outermost orbit. |
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What is a conductor? |
A material that will permit electricity to flow through it easily |
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What is COULOMB? |
A number of electrons equal to 6.25X10¹⁸ |
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What is direct current? |
electric current flowing in one direction only. |
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What is voltage? |
Electrical pressure the potential difference between two points Force that drives or pushes electricity. |
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Which electrical quantity is the unit of power? |
Watt |
