2. Work and Simple Machines
Mechanical Advantage
Calculating MA
Misc.
200
400
600
800
1000
FINAL JEOPARDY
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3. Work: 200
Question: To calculate work, you need to know these two things. Answer: What is force and distance?
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4. Work: 400
Question: The work you do a simple machine is called this. Answer: What is input or effort?
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5. Work: 600
Question: The work a simple machine does to an object is called this. Answer: What is output or resistance?
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6. Work: 800
Question: For work to occur on an object, the force must do this. Answer: What is be in the same direction as the motion?
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7. Work: 1000
Question: This is the mechanical efficiency of a machine that requires 2000N of force applied over 5m to lift a 10,000N object .75m. Answer: What is 75%?
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8. Simple Machines: 200
Question: This type of pulley only changes the direction of the force acting on an object. Answer: What is a single fixed pulley?
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9. Simple Machines: 400
Question: Simple machines make work easier by doing one, two or all three of these. Answer: What is change input force, change input distance or change input direction?
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10. Simple Machines: 600
Question: 3rd class levers, like a broom, make work easier by doing this. Answer: What is multiples the input distance?
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11. Simple Machines: 800
Question: When a screwdriver is used to open a can of paint these two changes occur to the input force. Answer: What is size and direction?
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12. Simple Machines: 1000
Question: These changes occur to the force and distance when the longer ramp is used to move the object to the top of the ramp. Answer: What is less force is used over a longer distance.
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13. Mechanical Advantage: 200
Question: Mechanical advantage is a comparison of these two forces. Answer: What is output to input? MA = OF / IF
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14. Mechanical Advantage: 400
Question: This simple machine always has a MA less than 1. Answer: What is a third class lever?
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15. Mechanical Advantage: 600
Question: You can tell this by comparing the MA of two machines. Answer: What is which one makes work easier?
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16. Mechanical Advantage: 800
Question: The MA of a first class lever can be increased by doing this. Answer: What is move the fulcrum and load closer together, or increase the length of the effort arm.
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17. Mechanical Advantage: 1000
Question: Wheel and axle A has a greater MA than wheel and axle B because of this. Answer: What is the ratio of the wheel to the axle is greater in A?
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18. Calculating Mechanical Advantage: 200
Question: This is the MA of the pulley system. Answer: What is 1?
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19. Calculating Mechanical Advantage: 400
Question: This is the MA of the pulley system. Answer: What is 4?
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20. Calculating Mechanical Advantage: 600
Question: This is the MA of the lever. Answer: What is 6? IF
2 m
12 m
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21. Calculating Mechanical Advantage: 800
Question: If the input force to a simple machine is 20 N and the output force is 100 N, this is the MA of the simple machine. Answer: What is 5?
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22. Calculating Mechanical Advantage: 1000
Question: This is the MA of the wheel and axle. Answer: What is 2.5?
10 cm
25 cm
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23. Miscellaneous: 200
Question: This is the equation for power. Answer: What is P = W / t (power = work / time)?
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24. Miscellaneous: 400
Question: A machine that uses two or more simple machines is called this. Answer: What is compound machine?
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25. Miscellaneous: 600
Question: The joints in your body act as this part of a lever. Answer: What is fulcrum.
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26. Miscellaneous: 800
Question: The amount of power required to move a cart 100 m with a force of 550 N in 10s. Answer: What is P = W / t = 55,000 J / 10s = 5,500 watts?
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27. Miscellaneous: 1000
Question: Scissors are considered compound machines because they have these two simple machines. Answer: What is a lever and wedge?
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28. Final Jeopardy Category: Work Place your wager.
Question: Tom wants to use a ramp with a MA of 10 to roll a cart into the back of a truck. Joe wants to use a pulley system with a MA of 5 to get the cart into the back of the truck. Who will do the most work to get the cart into the back of the truck if friction is the same for both? Answer: They will do the SAME amount of work.
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29. Unknown Question Category: ????
Question: Not sure why this slide is here. Answer: Unknown
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30. You can Wager All or Part of Your Points on This Question
Daily Double
You can Wager All or Part of Your Points on This Question

31. You can Wager All or Part of Your Points on This Question
Daily Double
You can Wager All or Part of Your Points on This Question