Show:
Parts of a Circuit
Ohm's Law
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.battery B. Wire C. light bulb D.buzzer

Answer: A. battery

100
How do you solve for the voltage in a circuit?

V = I * R

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 does a dimmer (or potentiometer or a dial) do in a circuit?

The dimmer can change the amount of resistance in a circuit.

200

As resistance increases in a circuit, what happens to the current?

What is the current decreases.

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 an example of a resistor that is not a light bulb.

refrigerator, computer, etc.

300

If the voltage in a circuit increases, what happens to the current?

What is the current increases

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 how a switch works in an electrical circuit.

When the switch is on the circuit is closed so electricity can flow. When the switch is off the circuit is open so electricty cannot flow.

400

Two positive charges are placed next to each other. Will they attract or repel?

What is they repel

400

Come to the board and draw a diagram of a parallel circuit.

To be determined by Mrs. R.

400

Mrs. R. wants to make an electric circuit but she is fresh out of copper wire. What is another household item that she could use in place of wire to carry the electricity to the device?

silverware metal necklaces steel wool keys aluminum foil etc.

500

Where are the resistors, wires, and energy source located in a lamp?

The resistor is the lightbulb, the wires are located in the electrical cord and inside the lamp, and the energy source is the electrical outlet which leads all the way to a power plant.

500

Coulomb's Law shows us that if we decrease the distance between two charges, what will happen to the force between them? 

What is the force will increase.

500

If all the devices (resistors) of a robot were wired in a series circuit, what would happen if the one of the lightbulbs in the robot burned out?

All the devices (resistors) 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!