A 100%efficient motorhas a powerinput of 1.2 kW.What is thepower output?Write theequationconnectingwork done,power, andtime.The powerdeveloped by acar engine is 40kW. In 5 seconds,how much workis done?Expresspower interms ofenergytransfer.What is themeaning of amachine havinga power ratingof 2.5 kW?Which has more k.e.,a car of mass 500 kgtravelling at 15 m s−1or a motorcycle ofmass 250 kgtravelling at 30 ms−1?A 60 W lamp isused for 30seconds. Howmuch energydoes it convert?Suppose yourweight is 600 Nand you climb a2000 mhigh mountain.The work done byyour muscles is:Give theSI unit ofpower.The graph ofenergy vs. time fora system has aslope of 250 J/s.What quantitydoes thisrepresent?The motor of the liftshown in Figure 5.18provides a force of 20kN; this force isenough to raisethe lift by 18 m in 10 s.Calculate the outputpower of the motor.Give theformula forelectricalpower in acircuit.A light bulbconverts 75%of electricalpower into light.What happensto the rest?A motor exerts aconstant force of150 N and movesan object at 4m/s. Calculatethe power output.A crane lifts a200 kg loadvertically at 0.8m/s. What is itspower output?(g = 9.8 m/s²)A motor does12 kJ of workin 20 seconds.What is itspower output?If a 2 kW kettleruns for 3minutes, whattotal energy istransferred?Calculate howmuch work isdone by a 50kW car enginein a time of 1.0minute.Definepower interms ofwork andtime.A 12 V batterysupplies acurrent of 4 A toa lamp. What isthe powersupplied?Name onecommon unitfor large poweroutputs, equalto 1000 W.What does itmean if anengine hashigher power butthe same totalwork done?Power can alsobe expressedas the productof ___ and ___in linear motion.A person who weighs500 N runs up a flightof stairs in 5.0 s(Figure 5.18). Theirgain in height is3.0 m. Calculate therate at which work isdone against the forceof gravityA 100%efficient motorhas a powerinput of 1.2 kW.What is thepower output?Write theequationconnectingwork done,power, andtime.The powerdeveloped by acar engine is 40kW. In 5 seconds,how much workis done?Expresspower interms ofenergytransfer.What is themeaning of amachine havinga power ratingof 2.5 kW?Which has more k.e.,a car of mass 500 kgtravelling at 15 m s−1or a motorcycle ofmass 250 kgtravelling at 30 ms−1?A 60 W lamp isused for 30seconds. Howmuch energydoes it convert?Suppose yourweight is 600 Nand you climb a2000 mhigh mountain.The work done byyour muscles is:Give theSI unit ofpower.The graph ofenergy vs. time fora system has aslope of 250 J/s.What quantitydoes thisrepresent?The motor of the liftshown in Figure 5.18provides a force of 20kN; this force isenough to raisethe lift by 18 m in 10 s.Calculate the outputpower of the motor.Give theformula forelectricalpower in acircuit.A light bulbconverts 75%of electricalpower into light.What happensto the rest?A motor exerts aconstant force of150 N and movesan object at 4m/s. Calculatethe power output.A crane lifts a200 kg loadvertically at 0.8m/s. What is itspower output?(g = 9.8 m/s²)A motor does12 kJ of workin 20 seconds.What is itspower output?If a 2 kW kettleruns for 3minutes, whattotal energy istransferred?Calculate howmuch work isdone by a 50kW car enginein a time of 1.0minute.Definepower interms ofwork andtime.A 12 V batterysupplies acurrent of 4 A toa lamp. What isthe powersupplied?Name onecommon unitfor large poweroutputs, equalto 1000 W.What does itmean if anengine hashigher power butthe same totalwork done?Power can alsobe expressedas the productof ___ and ___in linear motion.A person who weighs500 N runs up a flightof stairs in 5.0 s(Figure 5.18). Theirgain in height is3.0 m. Calculate therate at which work isdone against the forceof gravity

P - Call List

(Print) Use this randomly generated list as your call list when playing the game. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. O-A 100% efficient motor has a power input of 1.2 kW. What is the power output?
  2. W-Write the equation connecting work done, power, and time.
  3. W-The power developed by a car engine is 40 kW. In 5 seconds, how much work is done?
  4. P-Express power in terms of energy transfer.
  5. P-What is the meaning of a machine having a power rating of 2.5 kW?
  6. E-Which has more k.e., a car of mass 500 kg travelling at 15 m s−1 or a motorcycle of mass 250 kg travelling at 30 m s−1?
  7. O-A 60 W lamp is used for 30 seconds. How much energy does it convert?
  8. W- Suppose your weight is 600 N and you climb a 2000 m high mountain. The work done by your muscles is:
  9. W-Give the SI unit of power.
  10. O-The graph of energy vs. time for a system has a slope of 250 J/s. What quantity does this represent?
  11. O-The motor of the lift shown in Figure 5.18 provides a force of 20 kN; this force is enough to raise the lift by 18 m in 10 s. Calculate the output power of the motor.
  12. E-Give the formula for electrical power in a circuit.
  13. R-A light bulb converts 75% of electrical power into light. What happens to the rest?
  14. R-A motor exerts a constant force of 150 N and moves an object at 4 m/s. Calculate the power output.
  15. R-A crane lifts a 200 kg load vertically at 0.8 m/s. What is its power output? (g = 9.8 m/s²)
  16. O-A motor does 12 kJ of work in 20 seconds. What is its power output?
  17. P-If a 2 kW kettle runs for 3 minutes, what total energy is transferred?
  18. R-Calculate how much work is done by a 50 kW car engine in a time of 1.0 minute.
  19. P-Define power in terms of work and time.
  20. R-A 12 V battery supplies a current of 4 A to a lamp. What is the power supplied?
  21. E-Name one common unit for large power outputs, equal to 1000 W.
  22. E-What does it mean if an engine has higher power but the same total work done?
  23. E-Power can also be expressed as the product of ___ and ___ in linear motion.
  24. P-A person who weighs 500 N runs up a flight of stairs in 5.0 s (Figure 5.18). Their gain in height is 3.0 m. Calculate the rate at which work is done against the force of gravity