Physics moving around 1st end of term assesment

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Physics moving around 1st end of term assesment
2012-10-20 15:45:51
Physics moving around

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  1. What is a see saw an example of 
    a lever
  2. What does the see saw turn around 
    the pivot in the middle
  3. Which way does the see saw move
    clockwise and anti clockwise
  4. What happens if you further away from the pivot
    you have more turning effect 
  5. What should you use if you want to lift something greater than you
    a lever
  6. What is the thing that we are moving called
    the load
  7. what is our force called
    the effort
  8. Where is the pivot between
    the load and the effort
  9. What distance is bigger, the distance from pivot to effort or pivot to load
    pivot to effort
  10. Without a lever would it be hard to move something bigger than you or would you use less effort
    It would be hard to move something bigger
  11. What is the turning effect in the lever called
    the moment
  12. What is the equation for the moment
    moment = force X distance between force and pivot
  13. What is a pendulum
    something that swings
  14. What is it called from the time it takes to swing backwards and forwards
    the period
  15. When does the pendulum stop
    at the end of each swing
  16. When does the pendulum travel at its fastest
    when it gets to its lowest point in its swing
  17. What point do we time a pendulum from start to finish
    when it goes through its lowest point
  18. When does the period increse
    as the length increases
  19. What can forces change from an object
    speed shpe and direction
  20. What is the centre of a force called
    centripetal force
  21. What can be created in a force
  22. What does every force need
    a centripetal
  23. What is air resistance
    a frictional force between an object and the air
  24. What happens if there is no air resistance
    everything will fall at the same rate
  25. What force is acting against gravity
  26. What happens when something falls
    it accelerates
  27. What happens to the air resistance as the object falls faster
    the air resistance increases
  28. What happens if an object is falling with a big surface area
    the air resistance is bigger
  29. Eventually what happens to the force of gravity and air resistance
    they become balanced
  30. What is it called when something reaches its fastest point of falling
    terminal velocity
  31. What is good about larger surface areas in relation to smaller surface areas 
    the weight is spread out more
  32. How do you calculate pressure
    pressure= force/area
  33. What is inertia
    Something in your body which makes your body reluctant to move in something that looks stationery and reluctant to stop when something has already started
  34. What is pulling G
    it is when your body is heavier than it really is