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Properties of matterProperties of matter

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General Properties of General Properties of MatterMatter

Matter is anything that has mass and volume

Everything is made of matter

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What are properties?What are properties?

Characteristics used to describe an object

Ex: color, odor, shape, size, texture,hardness

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General Properties of General Properties of mattermatter

Mass, weight, volume, and density

Properties are used to identify a substance

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What is mass?What is mass?

Mass is the amount of matter in an object

Mass is constant Mass is also the measure of inertia

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What is inertia?What is inertia? Inertia is the resistance of an object to changes in its motion

The more mass the greater the inertia

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QuestionsQuestions

How is mass related to inertia?

Why are properties of an object important?

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QuestionQuestion

Which object has more inertia, an empty wagon or one loaded with rocks? Why?

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QuestionQuestion

What does a seatbelt do for a passenger when a car stops suddenly?

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QuestionQuestion

Why would the passenger move forward without the restraining force of the belt?

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QuestionQuestion

What would stop a passenger if the seatbelt were not in place?

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QuestionQuestion

What other safety features are present in a car in response to a person’s inertia in a moving vehicle?

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WeightWeight The measure of the force of

gravity on the mass of an object

Weight changes with gravity

The metric unit for weight is a Newton (N)

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Weight formulaWeight formula 1 kg = 2.2 pounds Weight is mass times gravity (9.8

m/s2) W= m x g What is your mass? What is your weight in Newtons?

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What is gravity?What is gravity? The force of attraction

between objects is gravity All objects exert a

gravitational force on each other

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QuestionQuestion Why can’t you feel the attraction between you and other objects the same way you are pulled toward Earth?

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Gravitational pullGravitational pull

The greater the mass of an object the greater the gravitational force

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QuestionQuestion

Why can’t we feel the pull of gravity from Jupiter even though it is so massive?

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What affects gravity?What affects gravity? The pull of gravity weakens as the distance between objects increases

gravity depends on mass and distance

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GravityGravity

The further an object is from the center of the earth, the less the object will weigh

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QuestionQuestion

Would you weigh less, more, or the same on top of Mount Everest?

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QuestionQuestion

The moon is smaller than the earth. How would your weight be different on the moon?

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QuestionsQuestions

What are three properties of matter related to mass?

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QuestionQuestion

What is density and how is it calculated?

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DensityDensity The density of water is 1.0 g/ml

Objects with densities greater than 1.0 will sink in water

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DensityDensity

Objects with densities less than 1.0 g/ml will float on water

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IceIce Ice floats therefore it is less dense than water

Ice mostly remains underwater with only a portion of it being exposed

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Astronomy fact!Astronomy fact! The planet Saturn has a density of less than 1.0 g/ml. If there was an ocean big enough to hold it, it would float!

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CalculationsCalculations

If 96.5 grams of gold has a volume of 5 cubic centimeters, what is the density of gold?

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CalculationCalculation

If 96.5 g of aluminum has a volume of 35 cm3, what is the density of aluminum?

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CalculationCalculation If the density of a diamond is 3.5 g/cm3, what would be the mass of a diamond whose volume is 0.5 cm3?

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QuestionsQuestions

What is another name for a chemical change?

Describe sublimation. How is a chemical change

different from a physical change?