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Chapter 3 Density and Buoyancy Flashcards | StudBud
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Chapter 3 Density and Buoyancy
Chapter 3 Density and Buoyancy
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Review for Standardized Test
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1
Which matter has the greatest density?
ice
aluminum
air
gold
2
The net upward force exerted on an object by the surrounding fluid.
buoyant force
density
net force
Archimede's Principle
3
What is the instrument that measures the density of a fluid?
net force
hydrometer
scale
buoyant force
4
The amount of matter that makes up an object
mass
volume
density
pressure
5
Why does an inflatable ball pop back up after it has been pushed into the water?
the air exerts an upward pull on the ball
the water causes the ball to float
the water exerts an upward force on the ball
gravity forces the ball down
6
A material that can flow and has no definite shape.
rectangular solid
physical property
fluid
mass
7
A six faced block in which all faces are rectangular.
fluid
rectangular solid
physical property
net force
8
What is the amount of mass per unit volume of a material?
mass
volume
pressure
density
9
What is the amount of space taken up by an object?
volume
density
mass
physical property
10
The density of gold is 19.3 g / cm
3
. What is the volume of a 100 gram gold necklace?
5.18 cm3
0.193 cm3
1930 cm3
119.3 cm3
11
What is the density of a 15 gram block of aluminum has a volume of 5.5 cm
3
?
82.5 g / cm3
.37 g / cm3
20.5 g / cm3
2.7 g / cm3
12
Which statement is true about the two cans of soda?
They both have the same density
The Diet Coke is less dense than the regular Coke
The Diet Coke is more dense than regular Coke
They both have the same mass
13
What two factors influence density?
mass and material
volume and material
volume and size
mass and volume
14
The force exerted per unit area by air particles
pressure
net force
buoyant force
atmospheric pressure
15
A property of a material that can be measured without changing the identity of the material.
atmospheric pressure
net force
buoyant force
physical property
16
What is the combination of all forces acting on an object?
buoyant force
Archimede's Principle
atmospheric pressure
net force
17
what does a hydrometer measure?
density
volume
mass
pressure
18
What two factors influence the mass of an object?
size and material
size and volume
material and density
volume and density
19
What instrument measures the density of a fluid?
graduated cylinder
hydrometer
barometer
balance
20
The buoyant force on an object is equal to the weight of the fluid the object displaces.
physical property
net force
buoyant force
Archimede's Principle
21
What happens as force is increased?
there is no relationship between force and pressure
pressure decreases
pressure stays the same
pressure increases
22
What is the amount of force exerted per unit of area on a surface?
pressure
Net force
buoyant force
density
