Parts of a Circuit
A student is constructing an electrical circuit. Which of the following can provide energy for the circuit? A. a battery B. Wire C. light bulb D.buzzer
Answer: A. a battery
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
Electrical energy flows through what type of material.
A. conductor B. insulators C. Both D. None of the above
A. Conductors
The part of the circuit that pushes the electricity through the circuit A. motor B. power or energy source C. wires D. light bulb
B. Power or energy source such as a battery
Which part of a circuit changes electrical energy into another form of energy?
The load (receiver- light bulb, buzzer, motor or bell)
If one light bulb stops working in a series circuit what happens to any other light bulbs in the circuit?
They also stop working.
Which material will best conduct electricity? A. plastic B. rubber C. wood D. silver
D. silver
True or False? Electricity can't be converted into other types of energy?
False
Name 2 examples of an energy source.
Battery and an electric generator
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 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.
Electrical energy does not flow through what type of material?
Insulators
Explain how a switch works in an electrical circuit.
A switch in an electric circuit acts like a gate. 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.
If an electrical circuit has a bell that receives energy through wires and a battery for an energy source, what energy conversions will occur?
chemical energy --> electrical energy --> sound energy
Come to the board and draw a diagram of a parallel circuit.
To be determined by teacher.
Ms. Webb wants to make an electrical 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 (receiver)?
silverware metal necklaces steel wool keys aluminum foil etc.
What 2 forms of energy does a hair dryer transform electricity into?
A. Motion and thermal energy
B. Thermal energy and light energy
C. Motion and sound energy
D. Force and motion energy
A. Motion and thermal energy
What are some examples of devices that could receive energy from the conductors (wires)
light bulb, buzzer or motor
Name a load(light bulb, buzzer, bell or motor) 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 lights of a robot were wired in a series circuit, what would happen if one of the lightbulb's in the robot burned out?
All the lightbulbs 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!
How can you tell that electricity if flowing through a circuit?
Electricity is flowing through a circuit when the light bulb is lit, the buzzer sounds, the motor runs, or the bell rings.