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| 2 requirements for models |
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Definition
1. Simple enough to be solvable
2. realistic enough to be useful |
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What do we do in order to describe the motion of n object in mathematical language?
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| In order to describe the motion of n object in mathematical language we have to introduce the model of the object, simplifying complicated situations. |
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Definition
The study of matter, motion, fores, and energy. It describes the motion of objects that are:
1. Large compared with the dimensions of atoms (10^-10 m)
2. Moving at speeds that are low compared of the speed of light (c = 3x10^8 m/s) |
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| Describing particles moving at any speed, even those whose speed approach the speed of light. |
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| deals with heat, temperature, and the behavior of large numbers of particles. |
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| Involves the theory of electricity, magnetism, and electromagnetic fields. |
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| a theory dealing with the behavior of submicroscopic particles. |
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| Anything you can measure or calculate in physics |
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| What should you be concerned with in the study of mechanics? |
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Definition
We should be concerned with physical quantities (units),
these can be described in terms of three fundamental quantities:
1. Length (L); SI unit m
2. Time (T); SI unit s
3. Mass (M); SI unit kg |
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| A scientific fact is a guess that has been tested over and over again and always found to be true. |
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| A theory is a synthesis of a large collection of information including well-tested guesses. |
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| A precise measurement is one that? |
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