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