Characteristic Properties, Density, and Buoyancy Test Review
Density Test = 80 points
20 multiple-choice problems (40 points)
Calculating Density Problems (20 points)
Measuring Density Lab (20 points)
1. Define characteristic property
2. List and define the 6 characteristic properties we discussed in class
Characteristic
Property
Definition
3. Write the equation for density
4. Define buoyant force
5. What’s this block’s density?
4 cm
mass = 400g
2 cm
5 cm
6. Which will float? Explain
Density of object > Density of liquid
Density of object < Density of liquid
7. If an object floats in water its mass is less than its volume. Explain this
statement.
8. In the Measuring the Density of Objects Lab a student collected this data.
Complete his or her data table
Volume
Mass
15.6 cm3
148g
Density
9. How will the following liquids layer from TOP to BOTTOM?
Kerosene
2.5 g/mL
Ether
0.6 g/mL
Water
1.0 g/mL
Veggie Oil
0.89 g/mL
Corn syrup 1.33 g/mL
10. A ball has a weight of 5 N and the water that is displaced has a weight of 10
N. What is its buoyant force?
11. Will the ball in # 10 sink or float?
12. A block has a buoyant force of 1.0 N and a weight of 1.2 N. Will this sink or
float?
13. Which ball has the greatest buoyant force? Why?
14. Label the 2 forces represented by arrows on the boat
Density problems
For each of the following SHOW YOUR WORK!!!
 What are you solving for?
 List the data you have include units
 Write equation
 Plug data/number with units into equation
 Solve with units (NO UNITS =NO CREDIT)
 Circle/box/highlight final answer
 Will this solid sink or float in:
i. Water (density of 1 g/mL)
ii. Rubbing alcohol (density = 0.7 g/mL)
iii. Liquid copper (density 8.9 g/mL)
15. A liquid has a volume of 12 mL and a mass of 11 g. What is its density?
16. An 85g piece of rock was put into a graduated cylinder with 10 mL of water
already in it. The water level rose to the 25 mL mark on the graduated
cylinder. What’s the density of the object?
17. A box has a volume of 175 cm3 and it weighs 2 N and has a mass of 800 g.
What is the density of the box?
18. Sally found a beautiful necklace at a garage sale for $5. She thinks it is made
of real gold. She remembered the story of Archimedes and how he measured
a crown to see if it was real gold. She finds that the mass of the necklace is
246g. It displaces 12mL of water. The density of gold is 19.3 g/mL. Did she
find a good deal at the garage sale with the real gold necklace?
Density Lab Test Review
Make sure to use SI units (no units = no credit)
Explain how you measured the density of the object. Include:
 Tools used (2 points)
 How to use each tool accurately to get important information for
density (6 points)
 Mathematical equations used (2 points)
Record All DATA collected: Be sure to label what each is. (5 points)
No Units = No Credit!
Density of the object _______________________________ (5 points)
(no units = no credit)