1. #1UNIT D The amount by which a machine can multiply a force.

2. #1UNIT D The amount by which a machine can multiply a force. MECHANICAL ADVANTAGE

3. #2UNIT D A device that helps us do work.

4. #2UNIT D A device that helps us do work. MACHINE

5. #3UNIT D A rigid bar or plank that can rotate around a fixed point.

6. #3UNIT D A rigid bar or plank that can rotate around a fixed point. LEVER

7. #4UNIT D In this class of lever the EFFORT is in the middle.

8. #4UNIT D In this class of lever the EFFORT is in the middle. THIRD

9. #5UNIT D Is shaped like an inclined plane but it is used for a different purpose.

10. #5UNIT D Is shaped like an inclined plane but it is used for a different purpose. WEDGE

11. #6UNIT D One part of a system.

12. #6UNIT D One part of a system. SUBSYSTEM

13. #7UNIT D A steering wheel in a car is an example of this type of machine.

14. #7UNIT D A steering wheel in a car is an example of this type of machine. WHEEL & AXLE

15. #8UNIT D A group of parts that work together to perform a function.

16. #8UNIT D A group of parts that work together to perform a function. SYSTEM

17. #9UNIT D The force applied to the machine.

18. #9UNIT D The force applied to the machine. INPUT FORCE

19. #10UNIT D The force the machine applies to the object.

20. #10UNIT D The force the machine applies to the object. OUTPUT FORCE

21. #11UNIT D A force that opposes motion.

22. #11UNIT D A force that opposes motion. FRICTION

23. #12UNIT D A measurement of how well a machine or device uses energy.

24. #12UNIT D A measurement of how well a machine or device uses energy. EFFICIENCY

25. #13UNIT D The gear the force is applied to.

26. #13UNIT D The gear the force is applied to. DRIVING GEAR

27. #14UNIT D Is a cylinder with a groove cut in a spiral on the outside.

28. #14UNIT D Is a cylinder with a groove cut in a spiral on the outside. SCREW

29. #15UNIT D The formula for mechanical advantage is;

30. #15UNIT D The formula for mechanical advantage is; MA=OUTPUT FORCE/INPUT FORCE

31. #16UNIT D The formula for speed ratio is;

32. #16UNIT D The formula for speed ratio is; SR=INPUT D / OUTPUT D

33. #17UNIT D The amount of work depends on two things;

34. #17UNIT D The amount of work depends on two things; FORCE EXERTED & DISTANCE MOVED

35. #18UNIT D A measure of the amount of force applied to a given area.

36. #18UNIT D A measure of the amount of force applied to a given area. PRESSURE

37. #19UNIT D Pressure applied to an enclosed fluid is transmitted equally in all directions is known as ________ law.

38. #19UNIT D Pressure applied to an enclosed fluid is transmitted equally in all directions is known as ________ law. PASCAL’S

39. #20UNIT D A tool or device made up of one basic machine.

40. #20UNIT D A tool or device made up of one basic machine. SIMPLE MACHINE

41. #21UNIT D What is the formula for work?

42. #21UNIT D What is the formula for work? W = F x D

43. #22UNIT D If a small syringe with a diameter of 2 cm has a force applied to it of 20 N, and the large syringe on the other side has a diameter of 10 cm, how many Newtons of force will be present at the large syringe.

44. #22UNIT D If a small syringe with a diameter of 2 cm has a force applied to it of 20 N, and the large syringe on the other side has a diameter of 10 cm, how many Newtons of force will be present at the large syringe. 100N

45. #23UNIT D If a syringe system has an MA of 5 and the small syringe moves 15cm down, how for up will the large syringe move?

46. #23UNIT D If a syringe system has an MA of 5 and the small syringe moves 15cm down, how for up will the large syringe move? 3 cm

47. #24UNIT D The purpose of task.

48. #24UNIT D The purpose of task. FUNCTION

49. #25UNIT D A one-speed bike and a 21 speed bike are both __________ in performing the task.

50. #25UNIT D A one-speed bike and a 21 speed bike are both __________ in performing the task. EFFECTIVE

51. #26UNIT D A 21-speed bike is more _______ than a one-speed bike in performing the task.

52. #26UNIT D A 21-speed bike is more _______ than a one-speed bike in performing the task. EFFICIENT

53. #27UNIT D The physical form of the device that makes it useable.

54. #27UNIT D The physical form of the device that makes it useable. DESIGN

55. #28UNIT D When you buy a more fuel efficient car because you do not want to pollute as much you are considering the…

56. #28UNIT D When you buy a more fuel efficient car because you do not want to pollute as much you are considering the… ENVIRONMENT

57. #29UNIT D What is the MA of a syringe system where the small syringe is 5cm in diameter and the large syringe is 30 cm in diameter?

58. #29UNIT D What is the MA of a syringe system where the small syringe is 5cm in diameter and the large syringe is 30 cm in diameter? MA = 6

59. #30UNIT D In a block & tackle pulley system, what would be the MA if there are 4 pulleys.

60. #30UNIT D In a block & tackle pulley system, what would be the MA if there are 4 pulleys. 4

61. SCIENCE 8 UNIT D MECHANICAL SYSTEMS ROCK & ROLL REVIEW