Electricity practice
D
Which switch does not have to be on for light 3 to function?
It has the same intensity
A circuit contains three light bulbs in parallel. After observation, a fourth light bulb is added, also in parallel. How does the intensity of the four light bulb circuit compare with the intensity of the three light bulb circuit?
Points 2 and 4
Which 2 points must be connected to might the light glow?
A and B
Which switches must be on for light 1 to function?
It should be hooked up in series because all loads will stop working and be protected from an overload of electricity.
A fuse is used to protect electric circuits from too much electricity running through them. How should a fuse be hooked up with the loads in series or parallel? Justify your answer
Nothing will work
A light bulb, a fan, a tiny speaker, and a switch are all connected to a battery in a series circuit. How will the circuit behave if the switch is open?
The lights would not come on because the circuit is still broken.
A series circuit contains four light bulbs. The switch is opened and one of the bulbs is removed, but not replaced. Then the switch is closed again. What would you expect to see?
If one of the loads goes out, it does not impact all the other loads.
An advantage of parallel circuits is that
He should wire each room in parallel with the next
An electrician is creating a wiring plan for a small house. He needs to create a plan that will allow the homeowners to turn off lights in one room without turning off the lights in another. What should he do to assure that each room's lights function independently of one another?
Only light 4 will go out
Consider the circuit if switches are added at points A, B, C, and D. All the switches are closed EXCEPT the switch at position D, which is left open. What is the result of this?
The rest of the lights will remain on because each light has its own path to the energy source.
During physical science class, Ben and Jerry connected three identical light bulbs in parallel to a battery. What happens when Ben removes one of the light bulbs from its socket?
Disconnect one light and see if the rest stay on. If they do, it is parallel. If they all go out, it is series.
If you could only see the lights in the circuit and the wires were covered from view, how could you determine the type of circuit the lights are arranged in?
The lights will get dimmer because there is only one path to the energy source which the light bulbs will have to share.
In a series circuit, what happens to the brightness of the bulbs as more are added.
All three lights will come on
Three light bulbs and a switch are connected to a battery in a series circuit. How will the bulbs behave if the switch is closed?
open circuit
When the electricity goes off as a result of a blown fuse or a flipped breaker, a(n) ____________ has been created and the electrical current is stopped.
That the voltage stays constant every time you add a new load because each load has its own path to the energy source and will receive the full voltage.
What does this graph represent about a parallel circuit?
That the voltage decreases every time you add a new load because there is only one path to the energy source which all loads will have to share.
What does this graph show about a series circuit?
Energy source
What role does a battery play in a circuit?
It is a parallel circuit because there is more than one path to the energy source
What type of circuit is this and how do you know?
No because there is a break in the circuit
Your class decides to build a circuit to make a light bulb shine. When you are finished, you have a setup like the picture. Will your light bulb shine?
