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| Characteristics of matter |
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Definition
| form,shape,occupies space |
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| amount of matter in any physical object |
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| Unit used to measure mass |
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| Fundamental building blocks of matter |
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| Difference between mass & weight |
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Definition
mass is constant
weight changes with gravitational pull |
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the ability to do work
measured in joules |
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| Examples of electromagnetic radiation |
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| x-rays,gamma rays,microwaves |
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| electrons moving across a wire |
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| motion at molecular level (heat) |
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Matter and energy law
(Think Einstein) |
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Definition
| cannot be created or destroyed |
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| Mass-Energy equivalence formula |
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| has ability to ionize matter |
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| electron is negative this makes the atom positive |
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| Biggest man made radiation source |
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| 2 types of electromagnetic energy that can ionize matter |
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| Tube Roentgen used to create x-rays |
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| as low as reasonably achievable |
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Filtration in x-ray machines
(think energy) |
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| Why did Thomas Edison end his research with x-rays? |
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