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Density
Test Description: Density Review
Instructions: Answer all questions to get your test result.
1) Density is
A
the amount of matter in a given volume.
B
the amount of atoms in matter.
C
the amount of matter in a given mass.
D
can be measured.
2) To calculate density, you must know the ___________ and __________.
A
size and shape
B
weight and length
C
mass and volume
D
weight and volume
3) Density of liquids is measured in which units?
A
cm3
B
g/cm3
C
mL
D
g/mL
4) Density of solids is measured in which units?
A
mL
B
g/mL
C
g/cm3
D
cm3
5) When measuring volume, 1 cubic centimeter is equal to
A
the volume of the object.
B
1 mL
C
1 mm
D
the mass of the object.
6) The density of fresh water is
A
19.3 g/mL
B
1.4 g/mL
C
1 g/mL
D
0.8 g/mL
7) If an object has a greater density than water, it will ___________ if placed in water.
A
can't be determined
B
sink
C
float
8) If an object has a density less than water, it will ______________ if placed in water.
A
sink
B
can't be determined
C
float
9) When a rock is placed in a graduated cylinder, the water level rises from 20 mL to 44 mL. What are you able to determine from this information?
A
need more information
B
the volume of the rock
C
the mass of the rock
D
the type of rock
10) When a rock is placed in a graduated cylinder, the water level rises from 20 mL to 44 mL. What is the volume of the rock?
A
20.2 mL
B
24 cm3
C
64 cm3
D
12 mL
11) You have a rectangular prism made of metal. You measure the length, width, and height. What are you able to calculate with these measurements?
A
not enough information given
B
volume
C
mass
D
density
12) You have a rectangular prism made of metal. You measure the length (4 cm), width (3 cm), and height (2 cm). What is the volume of the piece of metal?
A
24 cm3
B
6 cm3
C
9 cm3
D
14 cm3
13) You find a rock. It's mass 25 grams. It displaces 5 mL of water when you put in a graduated cylinder. What is the density of the rock? Will it sink of float?
A
0.5 g/cm3 .......... it will float
B
0.5 g/cm3 ........... it will sink
C
5 g/cm3 ............. it will float
D
5 g/cm3 ............ it will sink
14) You find a piece of metal. It's mass is 5.4 grams. It has a volume of 2 cm3. What is the density? Will it sink or float?
A
2.7 g/cm3 ............ it will sink
B
3.4 g/cm3 ........... it will sink
C
10.8 g/cm3 ............ it will sink
D
2.7 g/mL ............ it will float
15) What is the volume of a piece of gold that has a length (3 cm), width (3 cm), and height (2 cm)?
A
15 cm3
B
8 cm3
C
18 cm3
D
12 cm3
16) When you put a rock in a graduated cylinder containing 50 mL of water, the water rises to 82 mL. What is the volume of the rock?
A
32 mL
B
32 cm3
C
132 cm3
D
1.45 mL
17) What is the density of an object that has a mass of 21 grams and takes up 3 cubic centimeters?
A
8 g
B
63 g/cm3
C
7 g/cm3
D
0.7 g/cm3
18) The density of a pure substance
A
is always greater than the density of water.
B
is always the same.
C
can't be measured accurately.
D
changes depending on the size of the object.
19) If you cut a piece of wood in half, the density
A
will stay the same.
B
will decrease.
C
can't be determined.
D
will increase.
20) You find a piece of wood floating in a lake. You break the wood into pieces. When you put them back in the water,
A
the small pieces float and the larger pieces sink.
B
all of the pieces sink.
C
all of the pieces float.
D
the small pieces sink and the larger pieces float.
*select an answer for all questions
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