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Electricity Test
Electricity
Question | Answer |
---|---|
The flow of electrons | amperes |
A circuit that has wires branching off to provide paths for the flow of electrons | parallel |
A circuit that has a single path for electrons to flow | series |
Anything that electricity can flow easily through | conductor |
A product that doesn't let electrons flow easily | insulator |
The electric charge at rest on an object | static electricity |
The potential difference between two points in a circuit, measured in volts | voltage |
The opposition to the flow of electricity | resistance |
A series of wires and/or electrical devices that form a complete path through which electricity can flow. | closed circuit |
Glass, foil and water would be considered these, in terms of thermal energy | conductors |
Wood, foam and plastic would be considered these, in terms of thermal energy | insulators |
The three things needed to complete and electric circuit | battery (energy source), wire, bulb (or other electrical appliance) |
If resistance in a material increases, what happens to the current? | decreases |
Which has more resistance; short thick pipe or a long, thin pipe? | long, thin pipe |
Which color absorbs more heat; black or white? | black |
If voltage in a material increases, what happens to the current? | increases |
If the temperature of a material increases, what happens to the current flowing through it? | decreases |