Parts of a Circuit
Energy Transformation in a Circuit
Parallel vs. Series Circuits
Conductors and insulators in a circuit
100

A student is constructing an electrical circuit. Which of the following can provide energy for the circuit? A.electric generator B. Wire C. light bulb D.buzzer

Answer: A. an electric generator

100

The type of energy a circuit always starts off with is ________________ energy.

Electrical

100
In a parallel circuit electricity has ______ path(s) to follow.
multiple
100
Some students test a plastic spoon as a connector in an electrical circuit. Electricity does not flow in the circuit. Plastic is most likely... A. a load. B. an energy source C. a conductor D. an insulator
D. an insulator
200

What is the role of a wire in an electric circuit?

Carry electrical energy from one area to another.

200
Which part of a circuit changes electrical energy into another form of energy?
The load
200
If one load stops working in a series circuit what happens to any other loads in the circuit?
They also stop working.
200
Which material will best conduct electricity? A. plastic B. rubber C. wood D. silver
D. silver
300

Name 1 example of an energy source.

acceptable answers: battery, outlet, generator, photo cell
300
Which device can be added to an electrical circuit to convert electrical energy into mechanical energy? A. a switch B. a lightbulb C. a fan D. a speaker
C. a fan
300
Do you think Christmas Lights are an example of a series circuit or a parallel circuit? why do you think that?
They are an example of a series circuit because if one of the bulbs burns out the entire strand will not light up.
300
If you connect the wires of an electric circuit to a piece of jewelry why would the lightbulb in the circuit still turn on?
Because the jewelry is made of something that can conduct electricity.
400

Explain the purpose of a switch.

To open and close the circuit

400
If an electrical circuit has a bell for a load and a battery for an energy source what energy conversions will occur?
chemical energy --> electrical energy --> sound energy
400

Give an example when parallel circuits would be most helpful.

To be determined by Mrs. Thomas

400

Mrs. Thomas wants to make an electric circuit but she is out of copper wire. What are 3 other household items that she could use in place of wire to carry the electricity to the load?

silverware metal necklaces steel wool keys aluminum foil etc.

500

In a lamp, what would be the load?

The load is the lightbulb.

500
Name a load that can transform electric energy into thermal energy and name another load that can transform electric energy into sound energy.
Thermal- lightbulb, heater, etc. Sound- radio, speaker, phone, computer etc.
500
If all the loads of a robot were wired in a series circuit, what would happen if the one of the lightbulb's in the robot burned out?
All the loads of the robot would not work because the electricity only has one path to follow in a series circuit.
500
Why do electricians use wire that is coated in plastic when they are making new circuits?
This is because the wire can be dangerous to handle and can shock humans if they handle it when the circuit is on. The plastic coating helps to protect the electricians and us!
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