Parts of a Circuit
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
The type of energy a circuit always starts off with is ________________ energy.
Electrical
In a parallel circuit electricity has ______ path(s) to follow.
multiple
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
What is a circuit?
A continuous path that protons can travel around
A continuous path that electrons get stuck on
A continuous path that electrons can travel around
A continuous path that neutrons can travel around
3.A continuous path that electrons can travel around
What item would be the load in an electric circuit?
a. the wire
b. the switch
c. the light bulb
d. the battery
c. the light bulb
Which part of a circuit changes electrical energy into another form of energy?
The load
If one load stops working in a series circuit what happens to any other loads in the circuit?
They also stop working.
Which material will best conduct electricity?
A. plastic
B. rubber
C. wood
D. silver
D. silver
What is the flow of electric charge through a conductor, measured in amperes.
Circuit
Current
Voltage
Electrostatic Discharge
2. Current
Name 3 requirements to create a circuit.
bulb/load
Battery/power source
wires/ energy pathway
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
Do you think traditional 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.
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.
What is the unit of power, equal to one joule per second, is used to measure the rate of energy transfer in an electrical system.
What is the Volt
What is a Watt
What is the Amp
What is the Circuit
2. What is a Watt
Explain how a switch moved to the open position will do what in an electrical circuit.
1. turn on the bulb
2. turn off the bulb
3. won't change anything with the bulb
2 turn off the bulb
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
Draw a diagram of a parallel circuit.
To be determined by Ms. B
Ms. B 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.
Which options contains the necessary materials for building a circuit?
Battery, light bulb, motor
Wires, motor, light bulb
Motor, light bulb, wires
Wires, battery, light bulb
4. Wires, battery, light bulb
Where are the load, wires, and energy source located in a lamp?
The load is the lightbulb,
the wires are located in the electrical cord and inside the lamp
energy source is the electrical outlet which leads all the way to a power plant.
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.
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.
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!
Which of the following would result in creating an open circuit?
Closing a circuit switch
Loose or disconnected wires
Using copper wires instead of plastic wires
Adding a power source, such as a battery
2. Loose or disconnected wires