Your name: _____________________

Print this page, record your answers on it, and show it to your lab TF at the start of your lab session. In the lab you will carry out various activities involving fluids, dealing with the buoyant force, pressure, and flowing fluids. By the time you are finished experimenting you should know the answers to the questions below, but let's see what you think now before having done the lab.

Question 1: Object A sinks in a container of fluid. If the mass of object B is larger than the mass of object A, what will object B do when you put it in the container?

[ ] Sink             [ ] Float

[ ] There is not enough information given to answer this question

Briefly justify your answer:

Question 2: A block of wood floats partly submerged in a beaker of water. A block of lead, of exactly the same dimensions as the block of wood, is placed in the same beaker and sinks to the bottom. Which block experiences the largest buoyant force?

[ ] The wooden block         [ ] The lead block         [ ] The forces are equal

[ ] There is not enough information given to answer this question

Briefly justify your answer:

Question 3: A large beaker of water is placed on a scale, and the scale reads 40 N. A block of wood with a weight of 10 N is then placed in the beaker. It floats with exactly half of its volume submerged. Assuming that none of the water spilled out of the beaker when the block was added, what does the scale read now?

[ ] 40 N         [ ] 45 N         [ ] 50 N

Briefly justify your answer: