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

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

The Metric System All answers must be in standard units, which correspond to metric units Seconds, meters, and kilograms are standard units.

Metric Prefixes

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

Zeros As Significant Digits Zeros between two other significant zeros are significant 504 has 3 sigdigs 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 has 4 sigdigs 45 has 2 sigdigs 45.0 has 3 sigdigs

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

Quadratic Equations Creates a parabola when graphed k effects graph wideness

Inverse Equations Symmetric around the line y=x

Solve for d

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

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

SOH-CAH-TOA Ssin equals Oopposite over Hhypotenuse Ccos equals Aadjacent over Hhypotenuse Ttan equals Oopposite over Aadjacent sine=sincosine=costangent=tan

SOH-CAH-TOA SOH Find the hypotenuse

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

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  )= 

Practice Problem Find 