Buoyancy – Chapter 5 – Quiz Questions #2
pp. 94 - 104
1. Give an example of a solid, a liquid, and a gas that can float on water.
2. What is buoyancy? Against what other force does it act?
3. A 10-newton object displaces 12-newtons of water. Will this object sink or float?
4. Ben’s model boat weighs 4-newtons. When he puts it in the water it sinks! What can he do to make it float?
5. Using the terms weight and buoyant force – explain what makes objects float rather than sink.
6. Using the terms density of the object and density of the fluid – explain what makes objects float rather than sink.
7. A beach ball that is full of air floats in a swimming pool. However, a ball that is not inflated sinks to the bottom of the pool. Why?
8. In order for an object to have neutral buoyancy, what would the relationship between the density of the object and the density of the fluid have to be?
9. Why would it be very easy for you to float in the Great Salt Lake in Utah?
10. Why do icebergs float with only a little bit of their shape visible above the surface of the water?