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Density
Test Description: Details the relationships between density and size, shape, volume, mass and temperature. Also provides sample density calculations.
Instructions: Answer all questions to get your test result.
1) If a wooden block were cut into eight identical pieces, the density of each piece compared to the density of the original block would be
A
the same
B
greater
C
less
D
none of the above
2) As a volume of air expands due to heating, the density of this air will
A
increase
B
remain the same
C
none of the above
D
decrease
3) Compared to the density of liquid water, the density of an ice cube is
A
sometimes less and sometimes greater
B
always the same
C
always greater
D
always less
4) Under the same conditions of temperature and pressure, three different samples of the same uniform substance will have the same
A
volume
B
mass
C
shape
D
density
5) The correct explanation of why ice floats is that, compared to liquid water, solid ice
A
is less dense
B
has less mass
C
is more dense
D
has more mass
6) As air on the surface of Earth warms, the density of the air
A
increases
B
none of the above
C
remains the same
D
decreases
7) A 5.0-milliliter sample of a substance has a mass of 12.5 grams. What is the mass of a 100 milliliter sample of the same substance?
A
400 g
B
250 g
C
125 g
D
40.0 g
8) A pebble has a mass of 35 grams and a volume of 14 ml. What is its density?
A
0.4 g/ml
B
490 g/ml
C
2.5 g/ml
D
4.0 g/ml
9) Density is equal to
A
mass multiplied by volume
B
mass divided by volume
C
volume multiplied by mass
D
volume divided by mass
10) Mass = 10 grams and Volume = 5 ml, what is this objects density?
A
2 g/ml
B
10 g/ml
C
0.5 g/ml
D
5 g/ml
*select an answer for all questions
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