Jeopardy Jeopardy PHY101 Chapter 3 Review Study of Energy
Work Kinetic Energy Potential Energy Heat & Power Conservation Laws Potpourri $100 $200 $300 $400
Work $100 What is the definition of work? ANSWER
Work $200 What are the units of Work?
ANSWER Work $300 What is Energy?
ANSWER Work $400 What is the difference between kinetic and potential energy?
Kinetic Energy $100 ANSWER What is the equation for Kinetic Energy?
ANSWER What is the equation for momentum? Kinetic Energy $200
ANSWER Kinetic Energy $300 What is the equation for Kinetic Energy using momentum?
Kinetic Energy $400 ANSWER What is the work kinetic energy theorem?
Potential Energy $100 ANSWER What is the equation for Potential Energy for gravity?
Potential Energy $200 ANSWER What is the equation for Potential Energy for a spring?
Potential Energy $300 ANSWER What is the potential energy in a food calorie?
Potential Energy $400 ANSWER How much energy would you need to keep a 2200 lbs car moving at 60 miles/hour?
Heat & Power $100 ANSWER What is a calorie? What is a BTU?
Heat & Power $200 ANSWER What is internal energy?
Heat & Power $300 ANSWER What is power?
Heat & Power $400 ANSWER What are the units of Power?
Conservation Laws $100 ANSWER What is an open system? What is a closed system?
Conservation Laws $200 ANSWER What is the Law of Conservation of Linear Momentum?
Conservation Laws $300 ANSWER What is the Law of Conservation of Angular Momentum?
Conservation Laws $400 ANSWER What is the Law of Conservation of Energy?
Potpourri $100 ANSWER At what frequency would you put energy into a system?
Potpourri $200 ANSWER What is the impulse momentum theorem?
Potpourri $300 ANSWER Complete the table for linear/ angular conversions LinearAngular Displacementd Velocityv Accelerationa Massm ForceF momentump
Potpourri $400 ANSWER What is torque?
Work $100 Answer Back to Jeopardy What is the definition of work? Work is force acting through a displacement where force and displacement are parallel. Work = Force * Displacement = Fd
Work $200 Answer Back to Jeopardy What are the units of Work? SI 1 N*m = 1 Joule cgs 1 dyne*cm = 1 erg common 1 ft*lb 1 Joule = 10 7 ergs =0.738 ft*lbs
Work $300 Answer Back to Jeopardy What is Energy? Ability to do work.
Work $400 Answer Back to Jeopardy What is the difference between kinetic and potential energy? Kinetic Energy is energy of motion. Potential Energy is energy of position.
Kinetic Energy $100 Answer Back to Jeopardy What is the equation for Kinetic Energy? K.E. = ½mv² K.E. = ½m(v F ² - v O ²)
Kinetic Energy $200 Answer Back to Jeopardy What is the equation for momentum? Momentum = mass * velocity p = mv SI unit 1 kg*m/s
Kinetic Energy $300 Answer Back to Jeopardy What is the equation for Kinetic Energy using momentum? K.E. = p²/(2m) K.E. =(p F ² - p O ²)/(2m)
Kinetic Energy $400 Answer Back to Jeopardy What is the work kinetic energy theorem? Work NET = K.E. The units are the same for work & energy. Work + K.E. v Work - K.E. v
Potential Energy $100 Answer Back to Jeopardy What is the equation for Potential Energy for gravity? P.E. = mgy or mgd P.E. =mg y
Potential Energy $200 Answer Back to Jeopardy What is the equation for Potential Energy for a spring? P.E. = k S x²/2 P.E. = ½k S (x F ² - x O ²)
Potential Energy $300 Answer Back to Jeopardy What is the potential energy in a food calorie? 1 Food Calorie = 1 kcal = 4186 J
Potential Energy $400 Answer Back to Jeopardy How much energy would you need to keep a 2200 lbs car moving at 60 miles/hour? 2200 lbs = 1000 kg 60 miles/hour = 27 m/s K.E. = ½mv² = 360,000 J = 86 kcal A medium sized cookie
Heat & Power $100 Answer Back to Jeopardy What is a calorie? A calorie is the amount of heat need to raise 1 gram of water 1 degree Celsius. 1 cal = J What is a BTU? A BTU is the amount of heat need to raise 1 pound of water 1 degree Fahrenheit. 1 BTU = 252 cal = 1055 J
Heat & Power $200 Answer Back to Jeopardy What is internal energy? E INT = resistive force * distance = fd We see this as heat.
Heat & Power $300 Answer Back to Jeopardy What is power? Average Power is Work done/Time Average Power = Work/ t Instantaneous Power = force * velocity = Fv
Heat & Power $400 Answer Back to Jeopardy What are the units of Power? SI 1 J/s = 1 Watt = 1 W cgs 1 erg/s common 1 ft*lb/s 1 W = 10 7 ergs/s =0.738 ft*lbs/s 1 hp = Watts = 550 ft*lbs/s
Conservation Laws $100 Answer Back to Jeopardy What is an open system? F 0, Energy can go in or out of the system. What is a closed system? F = 0, No energy can go in or out of the system.
Conservation Laws $200 Answer Back to Jeopardy What is the Law of Conservation of Linear Momentum? p = 0 The momentum of the system before the collision is the momentum of the system after the collision.
Conservation Laws $300 Answer Back to Jeopardy What is the Law of Conservation of Angular Momentum? L = 0 The angular momentum of the system before the event is the angular momentum of the system after the event.
Conservation Laws $400 Answer Back to Jeopardy What is the Law of Conservation of Energy? Work Applied Force = K.E. + P.E. + E INT Energy can not be created or destroyed.
Potpourri $100 Answer Back to Jeopardy At what frequency would you put energy into a system? At resonance. The frequency at which the system naturally vibrates.
Potpourri $200 Answer Back to Jeopardy What is the impulse momentum theorem? J = F average t = p This is used with an open system.
Potpourri $300 Answer Back to Jeopardy Complete the table for linear/ angular conversions LinearAngular Displacementd Velocityv Accelerationa MassmI ForceF momentumpL
Potpourri $400 Answer Back to Jeopardy What is torque? Torque is force acting through a displacement where force and displacement are perpendicular. Torque = = Force * Displacement = Fd
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