IGCSE Additional Formula for Triple Award

Question 1

Moment =

Answer 1

Force × perpendicular Distance from pivot

Question 2

Principal of Moments

Sum of Anticlockwise Moments =

F₁ × d₁

Answer 2

Sum of Clockwise Moments

** = F₂ × d₂**

Question 3

Pressure in Liquids

P =

Answer 3

ρ × g × h

density × gravitational field strength × height

Question 4

Refractive index n =

Answer 4

sin i

sin r

Question 5

Refractive Index n =

Answer 5

speed of light in a vacuum

speed of light in the material