Show:
Energy Transformations in a Circuit Part 1
Energy Transformation in a Circuit
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 closed circuit electricity _______  (will/will not) flow through a form a complete path. 

will

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

Name something that can transform electric energy into sound energy.

Fan, tv, phone, etc..

200

What is needed to create an electrical circuit?

Wires, energy source, switch, light (optional)

200

If one energy source stops working in a series circuit what happens to any other energy sources 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 3 examples of an energy source.
Battery electric generator at a power plant photocells thermocouple
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

What happens in an electrical circuit if the switch is open?

The electricity is not able to completely flow through the circuit. The light will not light.

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

If an electrical circuit has a bell and a battery for an energy source what energy conversions will occur?

chemical energy --> electrical energy --> sound energy

400

Draw an example of a closed electrical circuit.

To be determined by the teacher. 

400
Ms. P wants to make an electric circuit but she is fresh 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

A circuit is open. There is a missing space. What item can you choose to complete the circuit and turn on the light?

anything that allows electricity to flow through (magnetic)

500

Name something that can transform electric energy into thermal energy. 

Thermal- lightbulb, heater, etc. 

500

In a circuit, there is an energy source, wires and a light. The circuit is closed, but the light will not light. What may be a possible reason for it not lighting up?

The light bulb has burned out, or the energy source (battery) has lost it's power. 

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!