Electricity

Question 1

electric charge

Answer 1

physical property of matter that causes it to experience a force when placed in an electromagnetic field

Question 2

current

Answer 2

charged particles moving through an electron or space

Question 3

EMF

Answer 3

energy per unit electric charge that is imparted by an energy source

Question 4

potential difference/voltage

Answer 4

measure of transfer of energy between two points in a circuit

Question 5

resistance

Answer 5

measure of the opposition to current flow in an electrical circuit

Question 6

Ohm’s Law

Answer 6

current through a conductor between two points is directly proportional to the voltage across the two points

Question 7

resistivity

Answer 7

measure of the resistance of a given size of a specific material to electrical conduction

Question 8

Kirchhoff’s 1st Law

Answer 8

at a junction in an electrical circuit, the sum of currents flowing into the junction is equal to the sum of currents flowing out of the junction.

Question 9

Kirchhoff’s 2nd Law

Answer 9

around any closed loop in a circuit, the directed sum of potential differences across components is zero