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.Power can alsobe expressedas the productof ___ and ___in linear motion.The graph ofenergy vs. time fora system has aslope of 250 J/s.What quantitydoes thisrepresent?The powerdeveloped by acar engine is 40kW. In 5 seconds,how much workis done?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 light bulbconverts 75%of electricalpower into light.What happensto the rest?Write theequationconnectingwork done,power, andtime.A 100%efficient motorhas a powerinput of 1.2 kW.What is thepower output?A motor does12 kJ of workin 20 seconds.What is itspower output?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?Expresspower interms ofenergytransfer.What does itmean if anengine hashigher power butthe same totalwork done?What is themeaning of amachine havinga power ratingof 2.5 kW?Suppose yourweight is 600 Nand you climb a2000 mhigh mountain.The work done byyour muscles is:If a 2 kW kettleruns for 3minutes, whattotal energy istransferred?Give theformula forelectricalpower in acircuit.A crane lifts a200 kg loadvertically at 0.8m/s. What is itspower output?(g = 9.8 m/s²)Calculate howmuch work isdone by a 50kW car enginein a time of 1.0minute.Give theSI unit ofpower.Name onecommon unitfor large poweroutputs, equalto 1000 W.A 12 V batterysupplies acurrent of 4 A toa lamp. What isthe powersupplied?A 60 W lamp isused for 30seconds. Howmuch energydoes it convert?Definepower interms ofwork andtime.A motor exerts aconstant force of150 N and movesan object at 4m/s. Calculatethe power output.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.Power can alsobe expressedas the productof ___ and ___in linear motion.The graph ofenergy vs. time fora system has aslope of 250 J/s.What quantitydoes thisrepresent?The powerdeveloped by acar engine is 40kW. In 5 seconds,how much workis done?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 light bulbconverts 75%of electricalpower into light.What happensto the rest?Write theequationconnectingwork done,power, andtime.A 100%efficient motorhas a powerinput of 1.2 kW.What is thepower output?A motor does12 kJ of workin 20 seconds.What is itspower output?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?Expresspower interms ofenergytransfer.What does itmean if anengine hashigher power butthe same totalwork done?What is themeaning of amachine havinga power ratingof 2.5 kW?Suppose yourweight is 600 Nand you climb a2000 mhigh mountain.The work done byyour muscles is:If a 2 kW kettleruns for 3minutes, whattotal energy istransferred?Give theformula forelectricalpower in acircuit.A crane lifts a200 kg loadvertically at 0.8m/s. What is itspower output?(g = 9.8 m/s²)Calculate howmuch work isdone by a 50kW car enginein a time of 1.0minute.Give theSI unit ofpower.Name onecommon unitfor large poweroutputs, equalto 1000 W.A 12 V batterysupplies acurrent of 4 A toa lamp. What isthe powersupplied?A 60 W lamp isused for 30seconds. Howmuch energydoes it convert?Definepower interms ofwork andtime.A motor exerts aconstant force of150 N and movesan object at 4m/s. Calculatethe power output.

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