| Properties of Solids | Mechanical properties of solids | Properties of fluids | Buoyancy | Random Questions |
|---|---|---|---|---|
|
What is a physical property of a solid?
color, texture, density ,brittleness and state(solid, liquid or gas)
|
What is tensile strength?
a measure of how much stress from pulling a material can withstand before breaking
|
What is a fluid?
Any matter that flows when force is applied
|
What is buoyancy?
the measure of an upward force that a fluid exerts on an object that is submerged
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What two things must we know in order to calculate an objects density?
mass and volume
|
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How can we tell if a solid underwent a physical change?
If the solid changed shape, size or phase of matter
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What is brittleness?
the tendency of a solid to crack or break before stretching very much
|
What is pressure and what type of energy is it?
a force applied to a fluid
potential energy |
What is the difference between weight and mass?
Weight is a force caused by gravity
Mass is a property of matter |
An imaginary line to show the flow of a fluid is known as________
streamline
|
|
What are 4 signs of evidence that a chemical change has taken place?
temperature increases. temperature decreases, a gas forms (bubbles) and a precipitate forms.
|
What is ductility? And give an example
the ability to bend without breaking
EX: copper to be formed into wire |
Most materials are ____ ______ in their solid phases than in their liquid phase
more dense
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How do we calculate average density?
Total mass divided by total volume
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The __________of a object is equal to the amount of water it displaces
buoyant force
|
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How do we calculate density?
Density=Mass Volume
|
What is malleability? And give an example
measure a solid's ability to be pounded into thin sheets
EX: aluminum foil and pop cans |
___ _________ fluids take longer to pour from their containers than ____ _________ fluids.
high viscosity, low viscosity
|
An object with an average density _________ than the density of water will sink.
greater
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What are some real life applications to buoyancy?
Hot air balloons, swimming, submarines
|
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What is the difference between crystalline and amorphous solids?
crystalline- arranged in a pattern
EX: salts, minerals and metals amorphous- arranged in a random way EX: rubber, wax and glass |
What is thermal expansion?
the tendency of atoms to take up more space as the temperature increases
|
As the temperature of a liquid is raised the _________ of the liquid decreases.
viscosity
|
What is the density of water?
1.0g/cm3
|
The density of a solid material depends on two things; how closely atoms or molecules are packed AND ________
the mass of individual atoms or molecules
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