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$200 $300 $400 Final Jeopardy $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 AB C D E.

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Presentation on theme: "$200 $300 $400 Final Jeopardy $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 AB C D E."— Presentation transcript:

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2 $200 $300 $400 Final Jeopardy $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 AB C D E

3 The point at which a lever arm pivots is called a(n) ? C1 $100

4 Answer: fulcrum C1? $100

5 Force is measured in these units C1 $200

6 Answer: newtons C1 $200

7 Look at the spring scale below. How many newtons of force are being applied?____________ C1 $300

8 Answer: C1 $ N

9 A hockey stick and salad tongs are these class of levers: C1 $400

10 Answer: Class 3 C1 $400

11 Timer The final Jeopardy question is: C1 final

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13 C2 $100 Which kind of advantage reduces the effort needed to lift a load?

14 C2 $100 Answer: mechanical

15 C2 $200 What type of pulley doesn’t provide a mechanical advantage?

16 C2 $200 Answer: Single-fixed

17 C2 $300 Scissors are this class of lever:

18 C2 $300 Answer: Class 1

19 C2 $400 Name 3 causes for different results in our lever experiment?

20 C2 $400 Answer: Zeroing spring scale wrong Improperly measuring Unbalanced lever

21 C2 $500 How much effort is required to lift the load? 240 N

22 C2 $500 Answer: 240 N / 3 ropes = 80 N

23 C3 $100 How many wheels does a single movable pulley have?

24 C3 $100 Answer: one

25 C3 $200 What kind of pulley gives you a directional advantage?

26 C3 $200 Answer: Single fixed or SF/SM w/effort pulling down

27 C3 $300 Name the four parts of any lever system.

28 C3 $300 Answer: Lever arm, fulcrum, effort, load

29 C3 $400 What two things are traded off for each other when using simple machines?

30 C3 $400 Answer: Effort and distance

31 C3 $500 Look at the illustration. The effort needed to lift the load in B is ______as much as the effort needed to lift the load in A.

32 C3 $500 Answer: ½ as much

33 C4 $100 What do all pulleys have in common?

34 C4 $100 They all give you some sort of advantage (either mechanical or directional)

35 C4 $200 As you move the load farther from the fulcrum, the effort needed to lift the load ________.

36 C4 $200 Answer: increases

37 C4 $300 As you move the effort closer to the fulcrum, the effort needed to lift the load ________.

38 C4 $300 Answer: increases

39 C4 $400 How much effort would it take to lift a 50 lb load with a lever?

40 C4 $400 Answer: Cannot be determined without more info on lever setup!

41 C4 $500 Diagram the following picture using arrows to indicate the forces at work, and identify the class of lever.

42 C4 $500 Answer: 2 F L E L E F

43 C5 $100 The force needed to lift a load:

44 C5 $100 Answer: Effort

45 C5 $200 True or false: There are pulleys that can give you both a mechanical advantage and a directional advantage at the same time.

46 C5 $200 Answer : True. A SF/SM w/effort pulling down does.

47 C5 $300 Which pulley system will not work?

48 C5 $300 Answer:

49 C5 $400 A system that has a pulley located somewhere above the load.

50 C5 $400 Answer: Single-fixed pulley

51 C5 $500 All the kids are the same weight. Circle the picture(s) that shows how the seesaws would NOT look when they stop moving. E D F

52 C5 $500 Answer: E D F

53 FOSS: Levers and Pulleys This Jeopardy template was created by Dr. Robert Pettis, Director An Adventure of the American Mind, University of South Carolina Spartanburg This Jeopardy game was created by Ron Fabrizi


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