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Jeopardy

Work, Power, Energy. Jeopardy. When you rub your hands together on a cold day, you convert (1) electrical energy into electromagnetic energy (2) nuclear energy into electrical energy (3) thermal energy into nuclear energy (4) mechanical energy into thermal energy.

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Jeopardy

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  1. Work, Power, Energy Jeopardy

  2. When you rub your hands together on a cold day, you convert (1) electrical energy into electromagnetic energy (2) nuclear energy into electrical energy (3) thermal energy into nuclear energy (4) mechanical energy into thermal energy

  3. Name the six types of energy 1- Chemical 2- Mechanical 3- Thermal 4- Nuclear 5- Electromagnetic 6- Electric

  4. What type of energy is represented in the picture?

  5. Double Jeopardy! What is the equation for kinetic energy? KE = mv2 2

  6. What energy conversion is taking place? Chemical energy to mechanical energy

  7. A How much kinetic energy will the diver have at position D? B C 15, 000 J – 3,750 J = 11,250 J D E

  8. Draw the equation triangle for power. W t P

  9. Evelyn did 950 J of work to stack a pile of wood in 2 minutes and 20 seconds. How much power does Evelyn have? Round final answer to nearest tenth. 2 minutes & 20 seconds = 140 seconds Power = work time Power = 950 J 140 sec Power = 6.8 Watts

  10. What is a Watt made of? Joules/seconds

  11. Draw the equation triangle for work. W D F

  12. A rock that weighs 7 N is pushed 30 m. How much work is done on the rock? Work = Force X Distance Work = 7 N X 30 m Work = 210 J

  13. Joe does 380 J of work to move a table 6 m. How much does the table weigh? Round your answer to the nearest tenth. Force = Work Distance Force = 380 J 6 m Force = 63.3 N

  14. Final Jeopardy Describe the energy conversion that takes place when using a tuning fork. (Think- what kind of energy goes in, what kind of energy comes out) Mechanical in - Mechanical out

  15. Final Jeopardy A car with a mass of 3,500 kg is traveling at 30 m/s. How much kinetic energy does the car have? KE = mv2 2 KE = (3,500 kg)(30 m/s)2 2 KE = (3,500 kg)(900 m/s) 2 KE = 1,575,000 Watts

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