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Published byJessie Jonathan Banks Modified over 9 years ago
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Matter as a Black Box Matter- anything that… – Has mass (resists changes in motion) – Has volume (takes up space) Energy- anything that… – Changes matter (moves it) (Kinetic Energy) – Stores up energy to move later (Potential energy)
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The Balloon Test A way to decide if you are dealing with matter or energy. Ask yourself… – Can I fill a balloon with it? If yes it is matter If no it is not
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The energy test … potential or kinetic? Ask yourself…what, if anything, is moving.
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Matter and Energy Observations
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Observations of Matter and Energy
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Matter and Energy Observations
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The Kinetic Molecular Theory K INETIC – refers to the energy of motion M OLECULAR – referring to molecules or groups of atoms bonded together T HEORY – an explanation of observations http://www.media.pearson.com.au/schools/c w/au_sch_whalley_sf1_1/int/2_slg.html
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All matter is made of particles
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Particles are in constant, random motion http://www.chem.purdue.edu/gchelp/atoms/s tates.html
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Motion increases with increased energy (heat)
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Attractive forces between particles hold matter together
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Strength of attractive forces varies Iron water oxygen
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More cool observations about matter…. Take out loose-leaf. Put a full heading on the top. Call this “Two More Observations of Matter”
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On the paper predict what will happen if we hit this meter stick with a hammer. Don’t forget a rationale.
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Now predict what will happen if we heat this can and then suddenly cool it in an ice water bath?
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Matter and Energy Observations Matter sometimes floats – In air – In water
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