Paper 1 Formulas

Question 1

What is the formula for GPE?

Answer 1

E_p = mgh

Question 2

What are the formulas for power?

Answer 2

• P = W/t
• P = E/t
• P = IV
• P = I²R

Question 3

What is the formula for efficiency?

Answer 3

efficiency = useful P output / total P input

efficiency = useful output energy / total input energy

Question 4

What is the formula for charge flow?

Answer 4

Q = It

Question 5

What is the formula for density?

Answer 5

density = m/V

Question 6

What is the formula for KE?

Answer 6

E_k = 0.5mv²

Question 7

What is the formula for PD?

Answer 7

V = IV

Question 8

What is the formula for energy transferred? (electricity)

Answer 8

E = QV