Download - Unit 1 lesson 1 Matter quick notes/review
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Unit 1 Lesson 1 Intro to Matter
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Matter
• Anything that has mass and takes up space
• House• Rock• Air• Atoms
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Mass
• The amount of matter in an object – measured in grams (g) or kilograms (kg)
• (how much stuff is inside something)
• We find mass with an electronic balance
• What has more mass?
• Ping pong ball Golf ball
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• The golf ball has more mass because it has more stuff in it. The ping pong ball has just air in it.
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Weight
A measure of the gravitational force exerted on an object. Units = g, N
We use a scale or spring scale to weight
Where do you weigh more?
Earth Jupiter
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• You weigh much more on Jupiter because it has more gravity than Earth
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Volume• The amount of space an object takes up is its
volume. Volume is measured in cm3 or mL.• We measure with a ruler for a solid object• We measure with a graduated cylinder for an
irregularly shaped object.
• What has more volume?
• A hot air balloon A birthday balloon
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• A hot air balloon has a greater volume that a birthday balloon
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Density• Density is equal to the mass in a given volume – • units are g/mL or g/cm3
• Density determines whether an object will sink or float
• Objects more dense than 1 will sink.
• Which object will sink in water?
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The rock will sink because its density is great than g/mL