1. PHYS1001 REG Throughout the semester you will work as part of 3 person team * Organize yourselves into teams of 3 * When you are happy with your team register your team on a computer and record your team number eg 7REG14 * Complete questionnaire and place in the box at front of lab

2. TIMETABLE – back page of lab manual Rotation system – Preparatory Work marked at the start of each session. Zero mark recorded if not completed before the lab class. Teams 1 to 8: 1 st column Collisions 9 to 16: 2 nd column Terminal Velocity 17 to 24: 3 rd column Liquid Flow (1)

3. EXCEL – Data Analysis T = k a n variable: period of orbiting body constant: k = 2  / (G 1/2 M S 1/2 ) variable: length of semi- major axis constant: “power” How do we find the values of the constants? EXCEL: 5.79  10 10  5.79e10

4. semi-major axis a (m) period T (s) y = ?? x ?? R 2 = ?? power fit using EXCEL trendline T = k a n (0,0)

5. log( a ) log( T ) (0,0) lbf lwf T = k a n log(T) = n log(a) + log(k) slope = n   n intercept = log(k)   log(k) k = 10 intercept ( k k + k - ) EXCEL – linear fit y = ?? x + ?? R 2 = ?? LINEST command: slope & uncertainty intercep t & uncertainty

6. h cyl h man Identify / Setup

7. Execute  straight line through origin y = m x (0, 0)

8. Execute expressing your answer relative density slope of ‘lbf’ uncertainty: difference between slopes ‘lbf’ and ‘lwf’or linest command 1 significant figure for uncertainty, hence, one decimal place  best estimate also one deciaml place Evaluate s.f. ok units ok value sensible  man >  cyl since h cyl > h man You will have two results: your paper graph results and the result from the Excel analysis

9. Density of the liquid in the manometer Do not follow instruction in lab manual (pages 1.10 – 1.11) From your estimate of the relative density calculate the density of the liquid in the manometer knowing that the density in the cylinder is water. Compare your value of the density of liquid in the manometer with the value determined by the hydrometer How to express your results Graph Hydrometer Evaluate