CP Physics Language and Math Tools

SCHOOLNOTES ONLINE Homework, quiz and test notices, copies of class handouts, etc. Add your name to the Notify list. ‘Units and Algebra’ Quiz A- 9/15 B- 9/16

Terms System Variable Unit (unit of measure) Initial Final ∆ (delta or change)

Measurement Metric System Units – Length – Mass – Time Accuracy and Precision timer exercises Significant Figures calc examples

Algebra Rules Rules for rearranging equations: 1.do unto both sides… 2.add or subtract first, then multiply or divide 3.Now break up parentheses 4.Handle exponents last PEMDAS for numbers Reverse PEMDAS for algebra

Algebra Practice v = d / td = v = d / tt = d = ½ a t 2 a = d = ½ a t 2 t = F s = μ s F N μ s = subscripts

Dimensional Analysis Suppose v is speed expressed in m/s d is displacement in meters (m) t is time in seconds (s) a is acceleration in m/s 2 Which of these appears to be correct? v = d / t d = v / t a = v / t A = v ∙ t

CP Homework A due 9/15B due 9/16 Read pages 22, 24 and 26 Do questions (pg27-28) # 2, 4, 5, 6, 8, 13, 14, 17 Note: for # 5, use Tables 1-3 and 1-8 in the book.

Honors Homework Due 9/13: Pg 14 Problems 1 – 5 ( see pg 12 for unit prefixes) Pg 25 Problems 1, 4, 5 Pg 28 Problems 16, 17, 18 (see pg 17,19 for rules) Due 9/15: Pg 29 Problems 26, 27 Pg 29 Problems 29, 32, 33, 35 Units and Algebra Quiz 9/15