1. Chapter 10 Work and Machines

2. __________ is when a force changes the motion of an object.

3. Work

4. Two or more simple machines put together make a ___________.

5. Compound Machine

6. ________ is the ability to do work.

7. Energy

8. A ___________ has few or no moving parts.

9. Simple Machine

10. A ball player using a ball to hit a bat is an example of _________.

11. Work

12. A rock on a hill has energy because it can ________ down the hill.

13. Roll

14. Scissors are an example of a ___________.

15. Compound Machine

16. A machine makes work easier because it lets you change the __________ of the force.

17. Direction

18. A ________ and a ________ are alike because they both help you pull something up.

19. Pulley and Lever

20. It is easier to ride a bike up a winding road because it is a ________ distance, but _________ to pedal.

21. Longer, Easier

22. Fish part the water when they swim. The simple machine that this is most like is the _________.

23. Wedge

24. A _________ is an example of a lever with the fulcrum at the end.

25. Wheel barrow

26. What simple machine is this?

27. Lever

28. What simple machine is this?

29. Inclined Plane

30. What simple machine is this?

31. Pulley

32. What simple machine is this?

33. Wheel and Axle

34. What simple machine is this?

35. Wedge

36. What simple machine is this?

37. Screw