Purposes
List 2 items that use electricity to create heat
Toaster, heater, oven
How many pathways are on a series circuit?
1
How many pathways for electricity is there in a parallel circuit?
2 or more.
A double switch controls how many circuits?
2
How Does a fuse work?
when there is too much power, the fuse burns out, which creates an open circuit.
List 2 items that use electricity to give light
Lamp, Headlights
How do you connect two batteries in a series circuit?
Negative to positive
Why are Batteries in parallel used?
If one battery is dead, the
other works and batteries
last longer because the
work is shared
A double switch controls how many circuits?
1
How does a circuit breaker work?
When there is too much power a switch turns off which creates the open circuit and turns off power.
List 2 items that use electricity to communicate
Phone, Computer
Why do batteries in series give you more power?
The power from each battery is added.
In a parallel circuit, will two batteries make a bulb brighter than 1 battery? Why?
No because each battery is on a separate circuit so it only takes half the power from each battery.
Where will we find double switches used?
School busses, Railway crossings
Why is a circuit breaker better than a fuse?
A fuse has to be replaced and a circuit breaker you only need to flip a switch.
List 2 items that use electricity to calculate
calculator, computer, watch
What happens to the light in a series circuit if one of the two batteries is dead? Why?
Goes out because dead battery creates an open circuit.
In a parallel circuit with 2 bulbs and one battery, if one bulb burns out what happens to the other bulb?
It stays lit.
Where will we find two-way switches used?
Top and bottom of stairs, both ends of a large room
What is a constant variable?
The items staying the same in an experiment.
List 2 items that use electricity to create movement.
pencil sharpener, saw, motor
What happens to the light in a series circuit if one of the two batteries is dead? Why?
Flashlight, toys
Where are bulbs in parallel used?
Headlights, Christmas lights, buildings
What is the name of the switch that can control a circuit from 2 different places?
Two Way Switch
What is a manipulated variable?
What is changed in the experiment.