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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
less
B
greater
C
the same
D
none of the above
2) As a volume of air expands due to heating, the density of this air will
A
none of the above
B
decrease
C
remain the same
D
increase
3) Compared to the density of liquid water, the density of an ice cube is
A
always greater
B
sometimes less and sometimes greater
C
always less
D
always the same
4) Under the same conditions of temperature and pressure, three different samples of the same uniform substance will have the same
A
shape
B
density
C
mass
D
volume
5) The correct explanation of why ice floats is that, compared to liquid water, solid ice
A
is less dense
B
is more dense
C
has less mass
D
has more mass
6) As air on the surface of Earth warms, the density of the air
A
none of the above
B
remains the same
C
decreases
D
increases
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
40.0 g
B
125 g
C
400 g
D
250 g
8) A pebble has a mass of 35 grams and a volume of 14 ml. What is its density?
A
490 g/ml
B
2.5 g/ml
C
0.4 g/ml
D
4.0 g/ml
9) Density is equal to
A
mass divided by volume
B
volume multiplied by mass
C
volume divided by mass
D
mass multiplied by volume
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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