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PV Density
Test Description: Density
Instructions: Answer all questions to get your test result.
1) What is density?
A
The amount of matter in an object.
B
How tall an object is.
C
The amount of space an object takes up.
D
How tightly matter is packed into an object.
2) If a cube has a density of 50, and you cut the cube in half, what is the density of the new cube?
A
100 g/cm3
B
15 g/cm3
C
25 g/cm3
D
50 g/cm3
3) What is the density of water?
A
2 g/cm3
B
4 g/cm3
C
-1 g/cm3
D
1 g/cm3
4) Calculate the density of the following object with a mass of 120g and a volume of 30mL.
A
60 g/cm3
B
40 g/cm3
C
1200 g/cm3
D
4 g/cm3
5) Calculate the density of an object with a mass of 50g and a volume of 5mL.
A
250 g/cm2
B
25 g/cm2
C
1 g/cm3
D
10 g/cm3
6) What is the correct formula for density?
A
d= mass X volume
B
d= volume/mass
C
none of the above
D
d= mass/volume
7) If an element has a density of 47.5 g/cm3, will it sink or float in water?
A
the object will float right under the surface of the water.
B
the object will float in the middle.
C
the object will float on top of the water.
D
the object will sink to the bottom.
8) Calculate the density of an object with a mass of 10 g and a volume of 40mL.
A
4 g/cm3
B
.25 g/cm3
C
400 g/cm3
D
40 g/cm3
9) Why does an air bubble rise to the surface of a glass of water?
A
The air has the same density as the water.
B
The air is more dense than the water.
C
The water i a thicker substance.
D
The air is less dense as the water.
10) What is the formula for volume?
A
v= density/mass
B
v= mass x density
C
we have not learned that.
D
v=mass/density
*select an answer for all questions
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