Pressure - OCR Gateway test questions - OCR Gateway

1

What is the meaning of 'pressure'?

2

What is the unit of pressure?

3

What are fluids?

4

At what angle does a force act on a surface when pressure is being calculated?

5

Why are liquids used in hydraulic systems instead of gases?

6

What is the formula for calculating pressure at the surface of a fluid?

7

A force of 10 N acts over a surface area of 2 m2. What is the pressure?

8

A force of 3 kN acts at right angles to a wall of area 12.5m2. What is the pressure that is exerted on the wall?

9

Why is a sharp knife better for cutting cheese than a blunt knife?

10

A man wearing skis exerts a pressure of 205 Pa on the snow. The skis have a combined area of 4 m2. What does the man weigh (what is his force)?