1What is current?
rate of flow of charge in a circuit
2What is potential difference?
difference in potential between two points of a circuit
3What is charge?
amount of energy travelling through a circuit
4What is resistance?
anything that slows down charge in a circuit
5What is the formula for charge flow?
charge (C) = current (A) x time (Q=Ixt)
6What is the formula for potential difference?
p.d (V) = current (A) x resistance (ohms) (V=IxR)
7How does the length of the wire affect the resistance?
the longer the wire, the higher the resistance as the electrons collide with more ions in a material