Archimedes principle and floatation
Assignment on chapter Archimedes principle and floatation based on topic thrust and pressure, Buoyancy/upthrust apparent loss in weight
1. What is meant by thrust? What is its SI unit? Also mention its common units?
2. What is meant by pressure? What are the SI units of pressure?
3. How is pressure related to thrust?
4. Why is sharp knife is more effective in cutting than a blunt knife?
5. What is meant by buoyancy/buoyant force? Name another term that is used for buoyant force?
6. On what factors does the buoyant force (or buoyancy)depend?
7. What is the magnitude of the buoyant force?
8. Why does an object lose its weight when immersed in a liquid?
9. In which direction does the buoyant force act on an object immersed in a liquid?
10. Why does a block of plastic released under water come up to the surface of water?
11. The volume of 50 g of a substance is 20 cm. If the density of water is 1 g cm/3 will the substance float or sink?
12. A cube of side 10 cm is immersed in water and then in saturated salt solution. In which case will it experience a greater buoyant force?
Assignment on chapter Archimedes principle and floatation based on topic thrust and pressure, Buoyancy/upthrust apparent loss in weight
1. What is meant by thrust? What is its SI unit? Also mention its common units?
2. What is meant by pressure? What are the SI units of pressure?
3. How is pressure related to thrust?
4. Why is sharp knife is more effective in cutting than a blunt knife?
5. What is meant by buoyancy/buoyant force? Name another term that is used for buoyant force?
6. On what factors does the buoyant force (or buoyancy)depend?
7. What is the magnitude of the buoyant force?
8. Why does an object lose its weight when immersed in a liquid?
9. In which direction does the buoyant force act on an object immersed in a liquid?
10. Why does a block of plastic released under water come up to the surface of water?
11. The volume of 50 g of a substance is 20 cm. If the density of water is 1 g cm/3 will the substance float or sink?
12. A cube of side 10 cm is immersed in water and then in saturated salt solution. In which case will it experience a greater buoyant force?
