14.
Mass
Density Formula
You can rewrite the Density Formula
Density Volume
15.
Mass
Density Formula
You can rewrite the Density Formula
Density Volume
16.
5
CST Review Questions
Mass = Density X Volume
17.
5
CST Review Questions
Mass = Density X Volume
Brick MassA = ?
Brick MassB = ?
Air MassC = ?
Air MassD = ?
18.
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = ?
Air MassC = ?
Air MassD = ?
19.
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = ?
Air MassD = ?
20.
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X 6000 = 6000
Air MassD = ?
21.
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X 6000 = 6000
Air MassD = 1 X 10000 = 10000
22.
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X 6000 = 6000
Air MassD = 1 X 10000 = 10000
23.
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X 6000 = 6000
Air MassD = 1 X 10000 = 10000
29.
Why is density important?
A. If an object has LESS density
than the liquid it will FLOAT.
The ball has LESS
density than water.
density of ball = less than water
30.
Why is density important?
B. If an object has MORE density
than the liquid it will SINK.
The ball has MORE
density than water.
density of ball = more
than water
45.
Think-Group-Share
An object has a mass of
50g and a volume of 5 mL.
What is its density?
46.
Think-Group-Share
An object has a mass of
50g and a volume of 5 mL.
What is its density?
10 g/mL
Density = Mass/Volume = 50g/5mL = 10g/mL
M
D V
M
D V
47.
Think-Group-Share
An object will sink in water
because its density is ____
the density of the water.
A. higher than
B. lower than
C. the same as
48.
Think-Group-Share
An object will sink in water
because its density is ____
the density of the water.
A. higher than
B. lower than
C. the same as
49.
Why is density important?
C. If an object has MORE density
than the liquid it will SINK.
The ball has MORE
density than water.
density of ball = more
than water
50.
Think-Group-Share
An object will float in water
because its density is ____
the density of the water.
A. higher than
B. lower than
C. the same as
51.
Think-Group-Share
An object will float in water
because its density is ____
the density of the water.
A. higher than
B. lower than
C. the same as
52.
What makes things float and sink?
A. If an object has LESS density
than the liquid it will FLOAT.
The ball has LESS
density than water.
density of ball = less than water
53.
Think-Group-Share
What is density?
A. the amount of matter in an
object
B. the mass per unit volume
C. the amount of space an object
takes up
54.
Think-Group-Share
What is density?
the amount of matter in an
object
B. the mass per unit volume
the amount of space an object
takes up
55.
What is density?
III. Density is an object’s mass per
unit volume.
feathers rocks
56.
Think-Group-Share
A boy pours 10 mL of water into
a graduated cylinder and drops
a marble into it. The water rises
to 20mL. What is the volume of
the marble?
57.
Think-Group-Share
A boy pours 10 mL of water into
a graduated cylinder and drops
a marble into it. The water rises
to 20mL. What is the volume of
the marble?
10 mL
Volume = 20mL - 10mL = 10mL
58.
Measuring the Volume of an Irregular Solid
Volume of object + water _____
-Volume of water______ - _____
Volume of object _____
mL
mL10
20
10 ml
20 ml
10 ml
Volume = _________10 ml
59.
Think-Group-Share
What is the volume of a
rectangular box that has a
length = 6 cm, width= 2 cm,
height = 3 cm?
60.
Think-Group-Share
What is the volume of a
rectangular box that has a
length = 6 cm, width= 2 cm,
height = 3 cm?
36 cm3
Volume = LxWxH = 6cm x 2cm x 3cm
= 36 cm3
61.
Volumes are calculated using a
formula.
Volume (box) = length X width X height
How is volume measured?
Volume (ball) = 4/3 X pi X radius3
62.
Think-Group-Share
A bottle holds 100 mL. It has a
density of 3 g/mL. What is its
mass?
63.
Think-Group-Share
A bottle holds 100 mL. It has a
density of 3 g/mL. What is its
mass?
300 g
mass = volume x density
= 100 mL x 3 g/mL
= 300 g
M
D V
M
D V
64.
Think-Group-Share
A box has a mass of 60g and a
density of 10 g/mL What is its
volume?
65.
Think-Group-Share
A box has a mass of 60g and a
density of 10 g/mL What is its
volume?
6 mL
volume = mass/density
= 60g/10g/mL = 6 mL
M
D V
M
D V
66.
Think-Group-Share
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81
g/mL. A ball has a density of
0.9g/mL. Will it float in water or
alcohol?
67.
Think-Group-Share
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81
g/mL. A ball has a density of
0.9g/mL. Will it float in water or
alcohol?
It floats in water.
68.
Class Work
Volume and Density Practice Problems
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81 g/mL. A
ball has a density of 0.9g/mL. Will it
float in water or alcohol?
Less Density
Than Water
1.0 g/mL
0.9 g/mL
69.
Think-Group-Share
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81
g/mL. A ball has a density of
0.9g/mL. Will it sink in water or
alcohol?
70.
Think-Group-Share
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81
g/mL. A ball has a density of
0.9g/mL. Will it sink in water or
alcohol?
It sinks in alcohol.
71.
Class Work
Volume and Density Practice Problems
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81 g/mL. A
ball has a density of 0.9g/mL. Will it
sink in water or alcohol?
More Density
Than Alcohol
0.81 g/mL
0.9 g/mL
72.
Think-Group-Share
A metal box has a mass of 90
grams and a volume of 10 mL.
What is its density?
73.
Think-Group-Share
A metal box has a mass of 90
grams and a volume of 10 mL.
What is its density?
Density = Mass/Volume = 9 g/mL
M
D V
M
D V
74.
Think-Group-Share
The density of nickel is
8.99 g/mL. The density of zinc is
7.1 g/mL. Is the metal box made
of nickel or zinc?
9 g/mL
75.
Think-Group-Share
The density of nickel is
8.99 g/mL. The density of zinc is
7.1 g/mL. Is the metal box made
of nickel or zinc?
It is made of nickel
9 g/mL = density
76.
Think-Group-Share
What is the volume of the box?
It sinks in alcohol.
10 cm
5 cm
2 cm
Mass = 300 grams
77.
Think-Group-Share
What is the volume of the box?
100 cm3
V = LxWxH = 10 cm x 5 cm x 2 cm
= 100 cm3
10 cm
5 cm
2 cm
Mass = 300 grams
78.
Think-Group-Share
What is the density of the box?
10 cm
5 cm
2 cm
Mass = 300 grams
79.
Think-Group-Share
What is the density of the box?
3 g/cm3
D = Mass/Volume = 300g/100cm3
= 3 g/cm3
10 cm
5 cm
2 cm
Mass = 300 grams
80.
Think-Group-Share
The density of water is 1.0 g/mL.
Will the box float or sink in water?
10 cm
5 cm
2 cm
Mass = 300 grams
81.
Think-Group-Share
The density of water is 1.0 g/mL.
Will the box float or sink in water?
It will sink in water.
3 g/cm3 is greater than 1 g/mL
10 cm
5 cm
2 cm
Mass = 300 grams
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