Paper 2 equations - triple only

Question 1

Pressure due to a solid =

Answer 1

Force / Area

P = F/A

Question 2

Pressure due to a column of liquid =

Answer 2

height of column of liquid x density of liquid x gravitational field strength

P = h x ρ x g

Question 3

Describe the following relationship in words:
Vp/Vs = Np/Ns

Answer 3

The ratio of voltages across the primary and secondary coils of a transformer is equal to the ratio of turns on the primary and secondary coils of a transformer.

Question 4

In order to use the equation to calculate pressure or volume for a gas
(P1 x V1 = P2 x V2),
what must remain constant?

Answer 4

To use this equation you must have a mixed mass at a constant temperature

Question 5

Moment of a force =

Answer 5

force x distance moved normal to the direction of the force