Unit 2: Electricity

Question 1

Word equation for charge?

Answer 1

Charge (Coulombs, C) = Current (Amps, A) x Time (seconds, s)

Question 2

Letter equation for charge?

Answer 2

Q = I x t

Question 3

Word equation for potential difference?

Answer 3

Potential Difference (Volts, V) = Current (Amps, A) x Resistance (ohms, Ω)

Question 4

Letter equation for Potential difference?

Answer 4

V = I x R

Question 5

Word equation for power?

Answer 5

Power (watts, W) = Potential Difference ( volts, V) x Current (amps, A)

Question 6

Letter equation for power?

Answer 6

P = V x I

Question 7

Word equation for power?

Answer 7

Power (watts, W) = (current)² (amps, A) x Resistance (ohms, Ω)

Question 8

Letter equation for power?

Answer 8

P = (I) ² x R

Question 9

Word equation for Energy?

Answer 9

Energy (Joules, J) = power (watts, W) x Time (seconds, s)

Question 10

Letter equation for energy?

Answer 10

E = P x t

Question 11

Word equation for energy?

Answer 11

Energy (Joules, J) = charge (Coulombs, C) x potential difference (volts, V)

Question 12

Letter equation for energy?

Answer 12

E = Q x V