electrical energy transfer

Question 1

what is electricity for

Answer 1

transferring energy usefully

Question 2

a circuit must have

Answer 2

1 competent supplying electrical energy and a component which converts this energy to different forms

Question 3

voltage

Answer 3

amount pf energy transfer per unit of charge passing through it

Question 4

voltage = energy transferred / charge

Question 5

electromotive force

Answer 5

energy transferred per unit of charge into electrical potential
eg a power station supplying 1.5V would be transferring 1.5J of energy o every Columb of charge passing

Question 6

potentail difference

Answer 6

energy transferred per unit of charge from electrical potential to some other store between 2 points in a circuit

Question 7

electron volt

Answer 7

if an electron is accelerated by a pd of 1V the energy it will gain is 1.6x10-19

Question 8

the amount of energy an electron gains by passing through a voltage of 1 is an electron volt