Electricity Basics Quiz
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Questions and Answers

What is the primary reason that conductors can conduct electricity?

  • They have loosely bound outer electrons. (correct)
  • They lack free electrons.
  • They are made of nonmetallic materials.
  • They contain positively charged ions.

What is the conventional direction of electric current?

  • From the negative terminal to the positive terminal.
  • From the center of the battery to the outer edges.
  • In random directions throughout the circuit.
  • From the positive terminal to the negative terminal. (correct)

What happens to the outermost electrons in a conductor when they gain extra energy?

  • They are easily lost and become free. (correct)
  • They become positively charged particles.
  • They remain bound to the nucleus.
  • They increase their mass significantly.

What is required for electric current to flow in a circuit?

<p>A closed electric circuit with a battery. (B)</p> Signup and view all the answers

When considering the actual direction of electric current, it is caused by the movement of which particles?

<p>Electrons (B)</p> Signup and view all the answers

What characterizes conductors in terms of electric charge flow?

<p>They have an excess of free electrons. (C)</p> Signup and view all the answers

Which material is classified as a semiconductor?

<p>Silicon (B)</p> Signup and view all the answers

What is the primary reason insulators do not conduct electricity?

<p>They lack free electrons. (A)</p> Signup and view all the answers

Which statement is true about electric current?

<p>It is the flow of electric charges through conductors. (A)</p> Signup and view all the answers

What distinguishes semiconductors from conductors and insulators?

<p>They can conduct electricity under certain conditions. (D)</p> Signup and view all the answers

Flashcards

Free electrons in a conductor

Outermost electrons in a conductor that are loosely bound and easily move.

Conductor

Material with many free electrons allowing it to conduct electricity.

Electric Circuit

A closed path for electric current to flow.

Conventional Current

Current direction assumed to be positive flow from positive to negative.

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Actual Current

Current that flows because of the movement of negatively charged electrons.

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Battery in an electric circuit

Necessary for a closed circuit to have a current

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Electric Current

The flow of electric charges through a conductor.

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Conductors

Materials that easily allow electric current to flow.

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Semiconductors

Materials with intermediate conductivity.

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Insulators

Materials that don't allow much electric current to flow.

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Electricity

The movement of electric charges.

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