Resistance of a wire

Physics GCSE
Coursework

AT1 Investigation
Resistance of a wire

How does the resistance of a wire change when it get's longer?

Prediction
My prediction is that the longer the wire, the higher the resistance, because it takes more energy going through the wire.


During the experiment what exactly will i measure?
In the experiment i will measure the resistance of the wire.


Fair test
The variables which i am going to keep the same in the experiment are going to be the type of wire and also the thickness of the wire.


Variables i am going to change
I am going to change the length of the wire.

What apparatus will i need?

Ruler-to measure the length of the wire - quantity 1
Battery-to give the current energy - quantity 2
Wire-to carrie the current - quantity 1
Volt-to measure the voltage ...