Batteries
What is a battery?
2 or more electrochemical cells.
What is a conductor?
Something that allows electrical current to move through it.
What is a source?
Anything that supplies electrical energy.
What is a load?
Any part of a circuit that converts electrical energy into another form.
If you have two 3 V cells, how much voltage do you have total?
What is an electrochemical cell?
What is an insulator?
Something that does not allow electrical current to move through it.
What is the symbol for electrical current?
I
What is electrical current measured in (units).
Amperes (A)
What is C?
Cell/Battery
What is the negative electrode in a cell called?
Anthode
Give 3 examples of conductors.
Answers will vary
What is resistance and why does it happen?
Resistance is the slowing of current flow due to the conversion of electrical energy to another form.
What is the symbol for resistance?
R
What is D?
Electrical Wire
What is a positive electrode in a cell called?
Cathode
Give 3 examples of insulators.
Answers will vary.
What is resistance measured in?
Ohms.
How does a short circuit happen?
When there is no load (resistance) in the electrical pathway, overloading the circuit.
What is the difference between a battery and a cell?
A battery is multiple cells put together.
What does the electrical potential difference of a battery measure?
The difference in electrical energy between two points in an electrical circuit.
Why are electrical wires covered in rubber and plastic?
Safety/fire risk.
What is A?
Load
What is B?
Switch
7.5 V