Friday, April 10, 2009

7th Grade Practice Problems

For the quiz on Friday:

1. What is the density of a liquid whose mass is 6.54g and takes up 3.27mL?

2. How much mass does a solid object have if it takes up 45.6 c.c of space and has a density of 3.45g/mL?

3. Does the DENSITY of clay change if you cut the block in half? Why?

4. What is the buoyant force on an object that displaces 34.6g of a liquid?

5. What is the buoyant force on an object that displaces 65.43mL of fresh water?

6. What is the buoyant force on an object that displaces 65.43mL of salt water?