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Recent content by igcsephysicstutor

  1. igcsephysicstutor

    Physics Paper 1 question!

    this is a confusing question, because there would be a fourth force of the pivot on the handle, which would be upwards 100N, so yes the vertical forces will be balanced, and the turning effect (moment, NOT momentum) would turn the handle anti-clockwise. so answer C. we have walkthroughs of most...
  2. igcsephysicstutor

    IGCSE Physics online tuition & free resources

    I've put up some more exam tips here: http://igcsephysicstutor.com/index/general-exam-tips.html Hope it helps!
  3. igcsephysicstutor

    terrible physics teacher -_-

    www.igcsephysicstutor.com : get going now, because you haven't got much time!
  4. igcsephysicstutor

    Physics O/N 2012 Paper 32 Question 2b, NEED HELP!

    draw first force. where first force finishes, draw second force. resultant force is from start of first force to end of secod force. it forms a triangle, not a parallelogram. in this case its a better way to solve the problem graphically.
  5. igcsephysicstutor

    Physics O/N 2012 Paper 32 Question 2b, NEED HELP!

    you need to take off the background radiation, which looks to be say 12. then the radiation count starts at (52-12) approx 40. count the time for it to halve. half would be 20 plus the background which is (20+12) = 32. on the graph, 32 is about 1.9 days.
  6. igcsephysicstutor

    Need Help with Physics

    the gpe of the bob is 0.45J at the start (height above ground is 0.3m). at its lowest position, its height is 0.2m above the ground, so is gpe is 0.3J, meaning that is k.e. must be 0.15J (0.45-0.30). so, 0.15J = half mass x speed squared = 0.5 x 0.15 x v^2 this give v^2 = 2, so v = sqrt(2) = 1.4
  7. igcsephysicstutor

    Physics O/N 2012 Paper 32 Question 2b, NEED HELP!

    choose a starting point. draw the weight vertically downwards, to scale. where the arrow of that force is (i.e. at the bottom of the arrow) start and draw the second, lift force which is pointing upwards and to the left, making an angle of 30-degrees to the vertical (i.e. in the same direction...
  8. igcsephysicstutor

    paper 6 physics

    tips for tackling paper 6 here: http://igcsephysicstutor.com/index/paper-6-exam-tips.html example table & graph errors and solutions here: http://igcsephysicstutor.com/index/paper-6-doing-tables-and-graphs.html other than that, i would suggest practice as many questions as you can!
  9. igcsephysicstutor

    IGCSE Physics online tuition & free resources

    Fixed! I will put up some more exam tips shortly, too.
  10. igcsephysicstutor

    IGCSE Physics online tuition & free resources

    Aha, erm oops my bad...
  11. igcsephysicstutor

    How to prepare for the physics exam ?

    Glad it helped!
  12. igcsephysicstutor

    IGCSE Physics online tuition & free resources

    Glad you found it useful!
  13. igcsephysicstutor

    How to prepare for the physics exam ?

    www.igcsephysicstutor.com - has video tutorials on most igcse topics, and is specifically for Cambridge exams. Plenty of free resources too, including tips on doing paper 6. Good luck!
  14. igcsephysicstutor

    IGCSE Physics online tuition & free resources

    More free content! We've made our general physics motion tuition session absolutely free! Check it out at www.igcsephysicstutor.com/index.html
  15. igcsephysicstutor

    IGCSE Physics online tuition & free resources

    Paper 6 top tips: http://www.igcsephysicstutor.com/index/paper-6-exam-tips.html
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