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Who Wants to Be a Millionaire?

Who Wants to Be a Millionaire?. Essays. Click the appropriate dollar amount at right to proceed to the question. _________________________ _____________________ _____________________ _____________________ ___________________ ___________________ __________________ _________________

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Who Wants to Be a Millionaire?

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  1. Who Wants to Be a Millionaire?

  2. Essays Click the appropriate dollar amount at right to proceed to the question _________________________ _____________________ _____________________ _____________________ ___________________ ___________________ __________________ _________________ _________________ _________________ _________________ ______________ ______________ ______________ ______________ Machines Double It.

  3. Phone A Friend • “OK Contestant…Please select a friend to help you with this one. You have thirty seconds to discuss your options…” Return to the Question

  4. Ask the Audience • “Audience, we need your help on this one…in a moment, we’ll ask you to indicate, by show of hands, your choice for the correct answer…” Return to the Question

  5. 50/50 Fifty - Fifty • You’ve asked that two of the wrong answers be eliminated, leaving you with one wrong answer plus the correct one. Return to the Question

  6. Correct Correct! Proceed to Next Question

  7. Incorrect Sorry, That’s Incorrect Return to the Question

  8. Dan and Paul push a box 4 meters with a force of 40 Newtons. How much work did they do? 50/50 1600 160 A B 100 1000 C D

  9. The amount of work a machine does is less than the amount of work put into it. Why? 50/50 Some goes into the air Some comes from other places A B Some changes the temperature Some is lost to friction C D

  10. The support in a lever is called the ______________. 50/50 effort force load A B fulcrum central joint C D

  11. Which of the following is an example of work? 50/50 Pushing your feet on a wall Hugging a tree trunk A B Pulling weeds out of a garden Pushing on a wall with your hands C D

  12. A jar has two lids that are the same size. You can put one lid on by slamming down hard on it with your fist. The other lid is a screw-top lid that turns on. Which statement below is true? 50/50 Both require the same work No work is done here A B First lid takes more work Second lid takes more work C D

  13. Which of the following is a simple machine? 50/50 computer brick A B bread machine salad tongs C D

  14. A screw is a modified _______. 50/50 wedge lever A B inclined plane wheel and axle C D

  15. Which kind of lever has the fulcrum in the middle? 50/50 First-class Fourth-class A B Third-class Second-class C D

  16. What type of pulley has many pulleys with one rope like the one we made in class? 50/50 reversible pulley fixed pulley A B moveable pulley block and tackle pulley C D

  17. How does a fixed pulley make work easier? 50/50 Reduces the effort force Changes the direction of force A B Doubles the movement of the load Increases the distance of applied force C D

  18. On a sailboat, the triangular jibsail acts as a(n) __________. 50/50 inclined plane lever A B pulley wheel and axle C D

  19. A baseball bat is a type of simple machine. Which of the following BEST describes the baseball bat? 50/50 first-class lever wedge A B inclined plane third-class lever C D

  20. On a sailboat, a winch cranks rope in and out. What kind of simple machine is a winch crank? 50/50 lever wheel and axle A B screw wedge C D

  21. In a lever what happens if the fulcrum is close to the load? 50/50 Less force is needed Less work is done A B More work is done More force is needed C D

  22. Which of the following simple tools is most closely related to an inclined plane? 50/50 crowbar shovel A B flagpole wheelbarrow C D

  23. A child uses two inclined planes joined together at an angle to push through sand. This machine is a __________. 50/50 ramp screw A B compound machine wedge C D

  24. Essays: • People who design machines try to reduce the friction between the machine’s parts. Explain why they do this and identify two ways you can reduce friction in machines. • In a wheel and axle simple machine, why is it important that the diameter of the wheel be greater than the diameter of the axle? • Identify a compound machine you use in your life. Identify at least two simple machines that are in the compound machine. • Explain how the formula for work relates to the scientific definition of work. • Simple machines make work easier • Name two simple machines and how they make work easier • Provide two examples of each type of simple machine.

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