Application of pressure in liquids practice exercise 1

Describe how the brake pedal in a car’s hydraulic braking system stops the car. (2 marks)

Describe how the brake pedal in a car’s hydraulic braking system stops the car. (2 marks)

Describe the role of the master cylinder in a hydraulic braking system. (1 mark)

Explain how a drinking straw uses atmospheric pressure to lift liquid. (2 marks)

Explain how a hydraulic braking system in a car uses the principle of pressure in liquids to stop the vehicle. (2 marks)

Explain how a hydraulic press uses the principle of pressure in liquids to lift heavy objects. (2 marks)

The diagram below shows a syphon set up. Explain how a siphon transfers water from one container to another. (2 marks)

Study the diagram below showing a simple fruit-juice dispenser made from a glass container with a tap near the bottom. Explain how pressure in liquids allows juice to flow into the cup when the tap is opened. (1 mark)

Explain why the hydraulic fluid used in braking systems must be free from air bubbles. (1 mark)

How does a bicycle pump use air pressure to inflate a tyre? (2 marks)

Water from an overhead tank can flow to taps without a pump. Explain using pascal's principle. (2 marks)