1. How many watts? a) 2 MW b) 100 MW c) 3.2 MW d) 0.5 MW 2. How many megawatts? a) 150,000,000 W b) 4,500,000 W c) 350,000 W d) 1000,000,000 W 3. The kilowatt is another unit of power. 1 kilowatt = 1000 watts (1 kW = 1000 W) How many watts? a) 2 kW b) 4.8 kW c) 0.5 kW How many megawatts? d) 3000 kW e) 400 kW f)20000 kW 4. A wind turbine produces 200 kW of power. How many wind turbines are the equivalent of a 500 MW coal-fired power station?

1. How many watts? a) 2 MW b) 100 MW c) 3.2 MW d) 0.5 MW 2. How many megawatts? a) 150,000,000 W b) 4,500,000 W c) 350,000 W d) 1000,000,000 W 3. The kilowatt is another unit of power. 1 kilowatt = 1000 watts (1 kW = 1000 W) How many watts? a) 2 kW b) 4.8 kW c) 0.5 kW How many megawatts? d) 3000 kW e) 400 kW f)20000 kW 4. A wind turbine produces 200 kW of power. How many wind turbines are the equivalent of a 500 MW coal-fired power station?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 43PE: (a) Calculate the power per square meter reaching Earth's upper atmosphere from the Sun. (Take the...

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1. Which order of magnitude does the SI prefix “mega-“ (M) represent? A. 103 B. 106 C. 109 D. 1012 2. 2.34 kW is equal to A. 2 340 W. B. 23 400 W. C. 234 000 W. D. 2 340 000 W. 3. How many seconds (s) are there in 1 hour 20 minutes? A. 80 s B. 380 s C. 4800 s D. 87 600 s 4. It takes a kettle 5 minutes to transfer 540 kJ of energy to boil some water. What is the power of the kettle? A. 1080 W B. 1800 W C. 9000 W D. 108 000 W 5. A heater of power 1200 W is switched on for an hour and a half. How much heat is given out from the heater? A. 2.16 kJ B. 6.48 kJ C. 2.16 MJ D. 6.48 MJ 6. An immersion heater has a power of 1500 W. How long does it take to supply 3 000 000 J of heat? A. 2 minutes B. 5 minutes C. 20 minutes D. 33 minutes 7. An immersion heater is connected to power supply via a joulemeter. The figure below shows the variation of the reading of the joulemeter with time. Estimate the power of the immersion heater. A. 582 W B. 723…
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What is the best description of gravitational potential energy? a. The energy stored, dependent on the object's height from the ground. b. The strength from a moving object. c. The energy exerted through stretching or squashing an object. d. The strength stored between molecules, in chemical bonds.
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Please complete the table below
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