Electrical Energy Pre-assessment

What is an electric circuit?

• A path that includes wires and bulbs

• A system of wires connected to a circuit breaker

• A wire from a light switch to a light

• A path for electrical current to flow

What does parallel mean?

• Actions of the same size or magnitude

• Actions occurring at the same time

• Actions that happen one after another

• One action will not happen unless the other action happens.

What does series mean?

• Occurring alongside each other

• Occurring at the same time

• Occurring in a sequence

• Getting larger with time

Why do several electric devices stop working when a circuit breaker is tripped?

• The devices are located close to the device that tripped the breaker.

• The devices are on the same circuit.

• The devices are in the same room.

• The devices use the same amount of electricity as the device that tripped the breaker.

How does closing a switch affect a circuit?

• It allows electrons to flow through the circuit.

• It increases the amount of power available to the circuit.

• It activates the wires in the circuit.

• It turns the parts of the circuit into conductors.

Atoms are composed of–

• protons.

• neutrons.

• electrons.

• protons, neutrons, and electrons.

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Which is NOT a renewable energy source?

• Wind

• Moving water

• Coal

• Solar energy

Electromagnets are made when–

• a. a magnet is placed near a conductor.

• b. the opposite poles of two magnets are brought together.

• c. a magnetic field is produced by an electric current.

• d. powerful magnets are added to an electric circuit.

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The force that describes how charged particles interact is called–

• electromagnetic force.

• gravitational force.

• strong nuclear force.

• weak nuclear force.

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When charged particles are traveling through a circuit, they are surrounded by a(n)–

• electric field.

• gravitational field.

• nuclear field.

• magnetic field.

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