GCSE-Pressure

Question 1

What is pressure?

Answer 1

It is the force acting per square metre perpendicular to the force.

Question 2

What is the equation for pressure?

Answer 2

P = F / A
where F is the force acting and A is the area PERPENDICULAR to that force through which the force is acting.

Question 3

What is the standard unit for pressure?

Answer 3

The Pascal (Pa)
1 Pa = 1 N/m2

Question 4

Can other units be used for pressure?

Answer 4

If A is measured in cm2 then pressure could be stated in N/cm2.
If A is measured in mm2 then pressure could be stated in N/mm2.