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Density
Test Description: Third test review
Instructions: Answer all questions to get your test result.
1) What happens to the denisty of a solid object if you cut it into 8 equal pieces?
A
The density stays the same
B
Each piece has a density 1/4 of the original
C
Each piece has a density 1/8 of the original
D
The density of each piece is 8 times greater
2) What is the formula for density?
A
volume times mass
B
mass divided by volume
C
volume divided by mass
D
Mass times volume
3) Objects in water will float if the density of the object is
A
twice the amount of the water
B
less than 1
C
more than 1
D
1
4) The proper units to use when measuring density are
A
cm3/g
B
g/cm3
C
g
D
cm3
5) What is the density of an object if the volume is 50.0 cm3 and the mass is 25.0g
A
2.0 g/cm3
B
0.5 g/cm3
C
1.0 g/cm3
D
1250.0 g/cm3
6) If an object has a density of 0.9 g/cm3 it will
A
sink in alcohol that has a density of 0.8 g/ml
B
float in oil that has a density of 0.7 g/ml
C
it will sink in water that has a density of 1.0 g/ml
D
float in alcohol that has a density of 0.8 g/ml
7) An object will sink in water if it has a density
A
1/2 the density of water
B
less than 1
C
equal to the density of water
D
greater than 1
8) A block of metal has a mass of 14.0 kg and a volume of 2.0 L. What is the density?
A
28.0 g/cm
B
7.0 g/cm
C
28.0 g/ml
D
7.0 g/ml
9) Oil floats on water. The most accurate reason for this is
A
oil is less dense than water
B
oil is immiscible (does not dissolve) in water
C
Oil is more dense than water
D
Water is less dense than oil
10) A graduated cylinder contains 100 ml of a liquid. The mass of the graduated cylinder with the liquid is 145 grams.The mass of the graduated cylinder when empty is 45 grams. The liquids density is
A
5.4 g/ml
B
3.2 g/ml
C
1.0 g/ml
D
0.3 g/ml
*select an answer for all questions
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