What Factors Affect the Resistance of a Piece of Wire

Aim:
The aim of this is to investigate how the length of a wire affects the resistance of it.
Prediction:
I predict that the longer the piece of wire, the greater the resistance will be. This is due to the idea of the free moving electrons being resisted by the atoms in the wire. In a longer piece of wire, there would be more atoms for the electrons to collide with and so the resistance would be greater. The relationship between the wire length and the resistance should be directly proportional. This is because in a wire twice the length of another wire there would be double the amount…