Grade 10 Physics · Strand 1: Mechanics and Thermal Physics · Pressure
Applications of Fluid Pressure
A short Grade 10 Physics lesson for the CBE curriculum, part of Mechanics and Thermal Physics: Pressure. Learn it on any phone with notes and slides, then check yourself with a quick quiz and earn XP. This lesson is free.
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5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.
1. When a learner sips juice through a straw, what actually pushes the juice up into the mouth?
- A. Atmospheric pressure acting on the juice surface in the glass
- B. A pulling force created by the vacuum in the straw
- C. The weight of air inside the straw
- D. The pressure of the learner's cheeks on the juice
2. Take atmospheric pressure as 100 000 Pa, the density of water as 1000 kg/m^3 and g = 10 N/kg. What is the maximum height of the crest of a water siphon above the surface of the water in the upper tank?
Type your answer (in m) in the lesson.
3. Which of the following is NOT a condition needed for a siphon to work?
- A. The tube is completely filled with liquid and has no air bubbles
- B. The outlet end is lower than the liquid surface in the upper vessel
- C. The inlet end stays submerged in the upper liquid
- D. The outlet end is at the same level as the liquid surface in the upper vessel
4. During the upstroke of a lift pump at a borehole, which statement correctly describes what happens to the valves?
- A. The piston valve opens and the foot valve closes
- B. The piston valve closes and the foot valve opens
- C. Both valves open
- D. Both valves close
5. Name the part of a force pump that traps a cushion of air so that water flows steadily, even while the plunger is being pulled up.
Type your answer in the lesson.
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