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density
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Cards (31)
What is the aim of the investigation described?
Investigating
the
density
of objects
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What does density describe?
Mass
of a substance per unit
volume
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In what units is density commonly expressed?
Kilograms
per
cubic meter
(kg/m³)
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What is the process to determine density in this practical?
Measure
mass
and
volume
, then
calculate
density
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What are the variables in the density investigation?
Independent variable
:
Material being measured
Dependent variable: Density of the material
Control variable
:
Temperature
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What is the independent variable in the investigation?
Material being measured
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What is the dependent variable in the investigation?
Density
of the material
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What is the control variable in the investigation?
Temperature
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Who is demonstrating the GCSE required practical on density?
Reese
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What types of objects will be measured for density?
Regular objects,
irregular
objects, and liquids
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How is density defined?
Density is how
heavy
a
material
is
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What is the formula to calculate density?
Density =
mass
/
volume
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In what units is mass measured for this practical?
Grams
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In what units is volume measured for this practical?
Centimeters cubed
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What is the unit for density in this practical?
Grams
per
centimeter cubed
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What is the mass of the brass block measured in the practical?
180.0 grams
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How do you calculate the volume of a cuboid?
Multiply
height
,
width
, and
length
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What is the volume of the brass block calculated in the practical?
20
centimeters
cubed
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What is the density of the brass block?
9
grams
per
centimeter cubed
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What is a vernier caliper used for?
To measure dimensions with high
precision
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What is the final width of the aluminium cube measured with the vernier caliper?
1.89
centimeters
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What principle does the Eureka can demonstrate?
The volume of water
displaced
equals the
object's
volume
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How do you fill the Eureka can for the experiment?
Fill until it drips from the
nozzle
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What is the mass of the object used in the displacement method?
1
kilogram
or
1000
grams
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What is the volume of water displaced by the mass?
130
centimeters
cubed
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What is the density calculated from the displaced water volume?
7.7
grams per centimeter cubed
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How is the density of a liquid measured?
Using a
measuring
cylinder and
balance
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What is the density of pure water measured in the practical?
1.0
grams
per
centimeter cubed
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What is the density of the sugar solution measured in the practical?
1.1
grams
per
centimeter cubed
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How much sugar is dissolved per centimeter cubed in the sugar solution?
0.1
grams
of sugar
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How many grams of sugar are in one decimeter cubed of solution?
100
grams of sugar
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