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Jeopardy on Forces and Motion

Jeopardy on Forces and Motion. Si. Mach. Equations Units Problems Newton 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500. FINAL JEOPARDY. Simple Machines for 100. Which machine uses fulcrums? Levers.

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Jeopardy on Forces and Motion

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  1. Jeopardy on Forces and Motion Si. Mach. Equations Units Problems Newton 100100100 100 100 200200200200200 300300300300300 400400400400400 500500500500 500 FINAL JEOPARDY

  2. Simple Machines for 100 • Which machine uses fulcrums? • Levers

  3. Simple Machines for 200 • Which machine is an inclined plane wrapped around a cylinder? • Screw

  4. Simple Machines for 300 • What type of lever is a wheel barrow? • 2nd class lever

  5. Simple Machines for 400 • Which simple machine consists of 2 inclined planes? • Wedge

  6. Simple Machines for 500 • The mechanical advantage of a machine without friction is called the ________ __________ __________ of the machine. • Ideal Mechanical Advantage

  7. Equations for 100 • How do you calculate work? • Work = Force X Distance

  8. Equations for 200 • How do you calculate power? • Power = Work / Time

  9. Equations for 300 • If you divide your distance by your time, what can you calculate? • Speed

  10. Equations for 400 • Calculate the effeciency of a machine with the input of 250 Joules of work and an output of 200 Joules of work. • Efficiency =Output/Input X 100 or 200/250 X 100 = 80

  11. Equations for 500 • If a student weighs 130 pounds, how much force does he exert in Newtons? Hint 4.5 N=1 lb. • 585 Newtons

  12. Units for 100 • In what unit do we measure force? • Newtons

  13. Units for 200 • In the SI system, what is the unit for measuring speed? • Meters/Second or KM/H

  14. DAILY DOUBLE • What is the average speed for these three trials, 40m/s, 72m/s, 64m/s? • 59m/s

  15. Units for 400 • Final velocity-Initial velocity/Time = ? • Acceleration

  16. Units for 500 • What unit is used to measure work and power? • Joules and Watts

  17. Problems for 100 • How much work is done if 25 Newtons of force is used to lift a box 2 meters high? • Work = Force X Distance or 25N X 2m=50Joules of work

  18. Problems for 200 • How much force is needed to move a table 3 meters across the floor if 300 Joules of work is required? • W = F X D or 300=FX3m or 100 Newtons

  19. Problems for 300 • What is the runners average speed if she runs 300 meters in 20 seconds? • Speed=Distance/Time=300/20=15m/s

  20. DOUBLE DAILY • A 52-kg water –skier is being pulled by a speedboat. The force causes her to accelerate at 2m/s squared. Calculate the force that causes this acceleration. (Hint: F=MXA • Force=52kg X 2m/s squared= 104N

  21. Problems for 500 • Which has more momentum: a 3-kg sledgehammer swung at 1.5 m/s or an 4-kg sledgehammer swung at 0.9m/s? (Hint: Momentum = Mass X Velocity • A: 3kg X 1.5 m/s=4.5 kg*m/s • B: 4kg X 0.9 m/s=3.6kg*m/s therefore, the lighter hammer, A has more momentum.

  22. Newton for 100 • A push or a pull on an object is called a _______. • Force

  23. Newton for 200 • Who discovered the three basic laws of motion? • Sir Isaac Newton

  24. Newton for 300 • What is Newton’s First Law of Motion? • An object at rest will remain at rest, unless an outside force acts upon it. An object in motion remains in motion unless and outside force acts on it.

  25. Newton for 400 • For every action there is an equal and opposite reaction is which law of motion? • Newton’s 3rd law of Motion

  26. Newton for 500 • What equation interprets Newton’s 2nd law of Motion? • Force = Mass X Acceleration

  27. Final Jeopardy • Name the six simple machines. • The lever, wedge, inclined plane, wheel and axle, pulley, screw

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