Unit 3 - Pressure and Hydraulics (Pressure in liquids)

Question 1

The more concentrated the force is..?

Answer 1

The higher the pressure will be

Question 2

Because liquids are incompressible and can flow, a force applied to one point in the liquid will be..

Answer 2

Transmitted (passed) to other points in the liquid

Question 3

How is pressure in liquids transmitted?

Answer 3

Pressure in liquids is transmitted equally in all directions

Question 4

What is the formula for pressure

Answer 4

Pressure = force/cross sectional area Pressure in pascals Force in newtons Cross-sectional area in metre squared

Question 5

What is pressure

Answer 5

Pressure is force per unit area

Question 6

What are hydraulic systems used as?

Answer 6

Force multipliers

Question 7

How do hydraulic systems work?

Answer 7

They use a small force to produce a bigger force

The system has 2 pistons, one with a smaller cross-sectional area than the other. Pressure is transmitted equally through the liquid, therefore the pressure at both pistons is the same