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.
What is a switch?
Something used to turn circuits on or off.
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
What are different purposes of a switch?
Safety and convenience
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 are some places we see switches used?
lights, games, smartboards
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.
What would happen if we didn't have switches?
Would have to manually shut things off.
Appliances could overheat
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 are advantages and disadvantages of a series circuit?
They are very simple. Only one pathway.
But if the pathway breaks, there is no other place for the electricity to flow.
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.