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Physics Introduction and Math Review

Physics Introduction and Math Review. CP Physics. What is Physics?. Branch of science which describes the physical world Describes the world using math Uses mathematical models to predict certain phenomena. Linear Motion Two Dimensional Motion Newton’s Laws and Forces Momentum

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Physics Introduction and Math Review

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  1. Physics Introduction and Math Review CP Physics

  2. What is Physics? • Branch of science which describes the physical world • Describes the world using math • Uses mathematical models to predict certain phenomena

  3. Linear Motion Two Dimensional Motion Newton’s Laws and Forces Momentum Work and Energy Rotational Motion Waves Sound Light Geometric Optics Electrostatics Topics Covered In This Course

  4. The Metric System • All answers must be in standard units, which correspond to metric units • Meters, kilograms, and seconds are standard units. • “MKS” system of measurement

  5. Metric Prefixes

  6. Significant Figures • Significant figures are important in labs in this class, not on tests or homework • All non-zero digits are significant • Zeros are more complicated

  7. Zeros between two other significant zeros are significant 504 has 3 sigfigs 40.05 has 4 sigfigs Zeros As Significant Figures • All final zeros after the decimal point are significant • 45 has 2 sigfigs 45.0 has 3 sigfigs • Zeros used solely for spacing the decimal point are not significant • 810 has 2 sigfigs 810.0 has 4 sigfigs

  8. Algebra Linear Relationships y=mx+b b=y intercept

  9. Quadratic Equations Creates a parabola when graphed k effects graph wideness

  10. Inverse Equations Symmetric around the line y=x

  11. Solve for d

  12. Solve for x All terms with x’s on one side, all without on the other side

  13. 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

  14. SOH-CAH-TOA sine=sin cosine=cos tangent=tan S sin equals O opposite over H hypotenuse C cos equals A adjacent over H hypotenuse T tan equals O opposite over A adjacent

  15. SOH-CAH-TOA SOH Find the hypotenuse

  16. Practice Problems • Identify which sides are being dealt with, the given and the unknown • Select the equation using SOH CAH TOA • Plug and Chug

  17. 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 x2 and x so that • Arcsin(sin )= 

  18. Practice Problem • Find 

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