Download Name: Period: Points: /28pts. Study Guide/Take home test: Density

Name:
Period:
Points:
/28pts.
Study Guide/Take home test: Density and Buoyancy Test 2014
1. In which direction does the pressure exerted by water push on fish in a fish bowl? 1pt.
2. What is the upward force on a swimmer that balances the downward force of gravity and keeps
the swimmer from sinking? ______________ 1 pt.
3. What is Archimedes’ Principle? 2pts.
4. What does density depend on? _____________ and _______________ 2pts.
5. How do you know if an object will float in water using the object’s density? 1pt.
6. If the density of air is 0.00119 g/cm3, how can an object float in air? 1pt.
7. Explain why a piece of aluminum foil that is tightly crumpled into a ball sinks while the same
piece of foil floats when it is loosely formed into ball? 1pt.
8. Jack has three identical 1-L bottles. One is filled with water, another filled with air, and the
third bottle is filled with soil. What is the same about all three bottles? 1pt.
9. What are the three equations using density? 3 pts.
10. SHOW WORK – A 100 cm3 beaker has a mass of 98g when it is full of oil. What is the density of
the oil? 2pts
11. SHOW WORK-The mass of a rectangular prism is 270g. What is the volume of the prism? What
is the density of the prism? 4pts
Name:
Period:
Points:
/28pts.
12. SHOW WORK – Solve the volume of the object in the graduated cylinder. 2pts.
13. SHOW WORK – The density of copper is 8.96g/cm3. What is the volume of a 10g sample of
copper? 2pts.
14. SHOW WORK – Andrea has two boxes. Box 1 measures 5cm x 10cm x 3cm and has a density of
5g/cm3. Box 2 measures 6cm x 10cm x2cm and has a density of 6 g/cm3. Which box has the
greater mass? (HINT: Solve for volume of each box first. Then solve for the mass of each box to
determine which is greater) 5pts