Download Review Sheet for Mastering Physics Tips and Tricks - General Physics I | PHYS 121 and more Study notes Physics in PDF only on Docsity! Mastering Physics 3.0 – Tips and Tricks (by R.Sonnenfeld 8/2008) 1. Help on Mastering Physics: The MP website has a student guide that is quite helpful. And Help is available on upper right of screen at all times. Try reading it if you find the software difficult to understand. What follows are the most common problems/questions I’ve seen students have, but are not intended to cover all the material in the online manual. 2. Way to approach the problems: Composition or spiral notebook is strongly recommended. Work the problem in your notebook, at least up to the part where you may need a hint. Then take it to the computer. Keep the full solution in your notebook for review. It will help you. 3. Numerical Answer Precision : Mastering Physics assumes +/ 2% accuracy for numerical answers. This corresponds to three significant figures. I recommend using four figures in your calculations, then rounding down to three figures at the end. 4. Numerical Constants: The first question you are likely to have about this is what value to use for g? We often say in class g=9.8 2/m s , but the software uses the more precise value g=9.81 2/m s . How would you know? Click the “constants” button in mastering physics. Whatever value they use for a constant there is what you should use in your calculations. 5. Submitting Answers: Most questions are multipart. After each part, click “submit”. Once you’ve got it right, go on. When you’ve finished the ENTIRE PROBLEM, click the bigger submit button at the bottom. You need to do this to get credit. Don’t forget. 6. Coming back and finishing later: You may have to leave after finishing one entire problem. It doesn’t hurt not to, but then I don’t think it saves your answers and you have to retype. Finished problems are saved. So if you had 9 problems to do, you could do it in 9 separate sessions (if you wanted to!). 7. Vectors and Unit vectors . The way MP wants to see the following ˆ ˆ ˆ3.0 4.8 7.0A i j k v typed is \vecA=3.0*\hati4.8*\hatj+7.0*\hatk 8. Some more examples of formulae formatted for Mastering Physics: 2 2 x y v v \sqrt((v_x)^2+(v_y)^2) or ((v_x)^2+(v_y)^2)^0.5 or (v_x^2+v_y^2)^(1/2) 1cos 2 acos(\pi/2) 2 2 2 cosA B AB \sqrt(A^2+B^2+2*A*B*cos(\theta))
