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Physics Introduction and Math Review CP Physics
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What is Physics? Branch of science which describes the physical world Describes the world using math Uses mathematical models to predict certain phenomena
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Topics Covered In This Course Linear Motion Two Dimensional Motion Newton’s Laws and Forces Momentum Work and Energy Rotational Motion Waves Sound Light Geometric Optics Electrostatics
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The Metric System All answers must be in standard units, which correspond to metric units Seconds, meters, and kilograms are standard units.
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Metric Prefixes
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Significant Digits Significant digits are important in labs in this class, not on tests or homework All non-zero digits are significant Zeros are more complicated
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Zeros As Significant Digits Zeros between two other significant zeros are significant 504 has 3 sigdigs 40.05 has 4 sigdigs All final zeros after the decimal point are significant Zeros used solely for spacing the decimal point are not significant 810 has 2 sigdigs 810.0 has 4 sigdigs 45 has 2 sigdigs 45.0 has 3 sigdigs
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Algebra Linear Relationships y=mx+b b=y intercept
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Quadratic Equations Creates a parabola when graphed k effects graph wideness
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Inverse Equations Symmetric around the line y=x
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Solve for d
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Solve for x All terms with x’s on one side, all without on the other side
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Intro to Triangle Trigonometry Hypotenuse=h=the longest side Opposite=o=the only side not in contact with Adjacent=a=the side in between and the right angle
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SOH-CAH-TOA Ssin equals Oopposite over Hhypotenuse Ccos equals Aadjacent over Hhypotenuse Ttan equals Oopposite over Aadjacent sine=sincosine=costangent=tan
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SOH-CAH-TOA SOH Find the hypotenuse
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Practice Problems Identify which sides are being dealt with, the given and the unknown Select the equation using SOH CAH TOA Plug and Chug
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Inverse Trig Functions Called inverse sine sin -1 Or arc sine arcsin The relationship between sin and arcsin is the same as the relationship between x 2 and x so that Arcsin(sin )=
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Practice Problem Find
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