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20 Cards in this Set
- Front
- Back
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What is the scientific word for "stuff"
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matter
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Mass is the measure of what?
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how much matter is in an object
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The mass of an object depends on what?
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how many atoms there are in an object and how big the atoms are
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How are atoms in liquids and solids different than the atoms in gasses?
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liquids and solids- packed together as close as they can get
Gasses- not packed together as closely as they can get |
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In order to determine which material is more dense the materials must have equal_______
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volumes
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What is the equation for density?
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D=m/v
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Density is defined as what?
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mass per volume of an object
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Density is the measure of how much what?
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matter there is in one millilliter of one cubic centimeter
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One milliliter is the same volume as what?
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one cubic centimeter
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If there is a lot of matter in a cubic centimeter, then it is ______ dense than a centimeter with very little matter in it
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MORE
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What is the density of water?
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1 g/ml
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materials more dense than water ________ in water
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sink
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Materials less dense that water ________ in water
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float
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The more salt dissolved in a volume of water, the _________ the solution's density
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greater
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When energy transfers to matter, the what increases?
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kintic energy (movement)
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The increased motion causes matter to what?
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expand
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When matter expands, what happens to the molecules?
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The molecules get farther apart.
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The general rule of matter is that when it gets hot, it expands and the density does what?
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goes down
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hot air does what?
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goes up
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cold air does what?
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goes down
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