An object with which of the following densities will float on water?
0.7 g/cm3
1.2 g/cm3
3.5 g/cm3
11.4 g/cm3
2. Multiple Choice
30 seconds
1 pt
A block has a mass of 54g and a volume of 20cm3. What is the density of the block?
74 g/cm3
1080 g/cm3
34 g/cm3
2.7 g/cm3
3. Multiple Choice
30 seconds
1 pt
A can of Coke will sink in a bowl of water. A can of Diet Coke will float in a bowl of water. What does this tell you about the density of the Diet Coke?
it is bigger than 1
it is smaller than 1
it is equal to 1
it is equal to -1
4. Multiple Choice
1 minute
1 pt
Why do ice cubes float in a glass of water?
the ice cubes are more dense than the water
the water is more dense than the ice cubes
the water is more dense than the glass
the ice is more dense than the glass
5. Multiple Choice
30 seconds
1 pt
Veal finds a gold colored rock in a river. It has a mass of 9.65 grams and a volume of 0.5 cm3. What is the density of the rock?
10.15 g/cm3
19.3 g/cm3
9.15 g/cm3
4.825 g/cm3
6. Multiple Choice
30 seconds
1 pt
Which property of matter is determined by dividing its mass by its volume?
elasticity
buoyancy
density
viscosity
7. Multiple Choice
30 seconds
1 pt
The following liquids are poured together in a beaker: alcohol (density=0.79), corn syrup (density=1.38), water (density=1.0), and cooking oil (density=0.93). Which of these liquids will sink to the bottom of the beaker?
alcohol
corn syrup
water
cooking oil
8. Multiple Choice
30 seconds
1 pt
Will an object with a density of 1.01 g/cm3 float or sink?
float
sink
9. Multiple Choice
30 seconds
1 pt
Mercury is a metal that is liquid at room temperature and has a density of 13.5 g/cm3. Which of these metals would sink below the mercury if dropped into a container of mercury?
gold (density=19.3 g/cm3)
lead (density=11.4 g/cm3)
iron (density=7.9g/cm3)
aluminum (density=2.7g/cm3)
10. Multiple Choice
1 minute
1 pt
A brick sinks in water while a wooden block of the same size floats. This is because the brick has a
lower volume than the wooden block
lower density than the wooden block
higher volume than the wooden block
higher density than the wooden block
11. Multiple Choice
30 seconds
1 pt
What is the density of a liquid that has a mass of 27g and a volume of 30ml?
0.9 g/ml
3 g/ml
57 g/ml
810 g/ml
12. Multiple Choice
30 seconds
1 pt
Will an object with a density of 0.999 sink or float in water?
sink
float
13. Multiple Choice
30 seconds
1 pt
A scientist has four different liquids and pours them all into a bottle. The silver liquid sinks to the bottom, the red liquid settles on top of the silver one, and the pink liquid stays at the surface. Which liquid has the smallest density?
the pink liquid
the silver liquid
the red liquid
the water
14. Multiple Choice
45 seconds
1 pt
What is the density of water?
0 g/ml
1 g/ml
10 g/ml
100 g/ml
15. Multiple Choice
30 seconds
1 pt
What is the density of a substance that has a mass of 30g and a volume of 6 liters?
24 g/l
5 g/l
36 g/l
180 g/l
16. Multiple Choice
45 seconds
1 pt
Why do some substances float on water?
they are warmer than water
they are cooler than water
they are more dense than water
they are less dense than water
17. Multiple Choice
30 seconds
1 pt
A piece of copper has a mass of 89g and a volume of 10 cm3. What would be the density of the copper?
0.89 g/cm3
89 g/cm3
8.9 g/cm3
890 g/cm3
18. Multiple Choice
30 seconds
1 pt
Which of these would be correct to put at the end of a density answer?
g/cm
cm3
g/ml
g/lb
19. Multiple Choice
45 seconds
1 pt
Helium balloons rise on earth because
helium is less dense than air
helium is more dense than air
helium is cooler than air
helium is warmer than air
20. Multiple Choice
30 seconds
1 pt
The density of Prof. Tesfay can be measured using which of these quantities?