# Physics moving around 1st end of term assesment

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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
7. what is our force called
the effort
8. Where is the pivot between
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
tension
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
friction
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
 Author: freezinged ID: 178595 Card Set: Physics moving around 1st end of term assesment Updated: 2012-10-20 19:45:51 Tags: Physics moving around Folders: Description: physics Show Answers: