💧 Fluids: Density, Viscosity, and Pressure
Explore the fundamental properties of fluids and how they behave in different conditions. **What you'll learn:** - Define and calculate density using mass and volume - Understand viscosity and how it affects fluid flow - Apply pressure concepts in liquids and gases - Compare properties of different fluids in real-world contexts - Solve problems involving buoyancy and fluid behaviour
Questions in this quiz
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- Question 1
Which of the following best describes density?
- Question 2
Honey has a higher viscosity than water at room temperature.
- Question 3
The density of water is approximately ___ g/cm³ or ___ kg/m³ at 4°C.
- Question 4
A piece of wood floats on water while a rock sinks. This occurs because:
- Question 5
Pressure in a fluid increases as depth increases because there is more fluid weight pressing down from above.
- Question 6
The SI unit for pressure is the ___, which equals one Newton per square metre.
- Question 7
If you pour the same volume of oil and water into identical containers, the water will have a greater mass. Which property of the fluids best explains this?
- Question 8
Gases have negligible viscosity compared to liquids.
- Question 9
Arrange these steps in the correct order for calculating the density of an irregular solid object using water displacement:
- Question 10
A hydraulic lift uses pressure to multiply force. If a small piston has an area of and a large piston has an area of , and a force of is applied to the small piston, what is the approximate output force on the large piston?