33 questions

- 1. Multiple ChoiceWhat quantities do you need to calculate energy?Current and VoltagePower and timeResistance and currentPower and Voltage
- 2. Multiple ChoiceWhat quantities do you need to calculate power?Current and VoltagePower and timeResistance and currentPower and Voltage
- 3. Multiple ChoiceWhat are the units for energy?kWhJoulesBothNeither
- 4. Multiple ChoiceHow many kilowatts are in 6500 W0.65 kW6.5 kW65 kW6,500,000 kW
- 5. Multiple ChoiceHow many kilowatts are in 500 W0.5 kW5 kW50 kW500,000 kW
- 6. Multiple ChoiceHow many kilowatts are in 80 W0.008 kW0.08 kW0.8 kW8 kW
- 7. Multiple ChoiceHow many watts are in 0.003 kW0.3 W3 W300 W3000 W
- 8. Multiple ChoiceHow many watts are in 2 kW0.2 W2 W200 W2000 W
- 9. Multiple ChoiceHow many seconds are in 4 hours240 s14400 s0.067 s400
- 10. Multiple ChoiceHow many seconds are in 9 days540 s32400 s12960 s777,600 s
- 11. Multiple ChoiceHow many hours are in 90 min5400 hr1.3 hr.5 hr1.5 hr
- 12. Multiple ChoiceHow many hours are in 12 min720 hr0.2 hr.12 hr1.2 hr
- 13. Multiple ChoiceWhat is the electrical energy of a 750 W waffle iron that is used for 15 min11,250 kWh11.25 kWh0.1875 kWh50 kWh
- 14. Multiple ChoiceWhat is the electrical energy of a 70 W TV that is used for 110 hr0.63 kWh7700 kWh1.57 kWh7.7 kWh
- 15. Multiple ChoiceWhat is the power rating of a space heater that uses 1.2 kWh of energy in 45 min?0.026 kW54 kW0.9 kW1.6 kW
- 16. Multiple ChoiceWhat is the power rating of an oven that uses 4 kWh of energy in 2 hours?0.5 kW8 kW6 kW2 kW
- 17. Multiple ChoiceHow much time did you play video games if the PS4 uses 110 W of power and you used a total of 16.5 kWh of energy?6.63 hrs0.15 hrs150 hrs50 hrs
- 18. Multiple ChoiceHow much time did you cook dinner if the oven uses 1.5 kW of power and you used a total of 13.5 kWh of energy?9 hrs0.1 hrs20.25 hrs5 hrs
- 19. Multiple ChoiceWhat is the energy used of a light bulb if it is plugged into a 120 V outlet for 90 hrs and has 240 Ohms of resistance?5.4 kWh60 kWh54 kWh0.5 kWh
- 20. Multiple ChoiceHow much does it cost to run you 70 W TV for 120 hrs at $0.10 per kWh$0.84$840$8.4$0.17
- 21. Multiple ChoiceWhat is the equation for power?V = IRP = IVP = IRP = I/V
- 22. Multiple ChoiceWhat is the unit of electrical power?wattvoltampereohm
- 23. Multiple ChoiceWhat will be the current drawn by an electric bulb of 1000 W when it is connected to a source of 220 V?4.55 A28800 J or 28.8 KJ80 W200 W
- 24. Multiple ChoiceA current of 4 A flows through a 20 V car headlight bulb. Calculate the electric power.

80 W200 W2.5 A4.55 A - 25. Multiple ChoiceCalculate the electric power of an electrical appliance in which 10 A of current is flowing through a resistor of 2 ohms.

80 W200 W2.5 A22.5 KJ - 26. Multiple ChoiceCalculate the electric power of an electrical appliance of 20 V having a resistance of 10 ohms.

200 W40 W2.5 A79.20 KJ - 27. Multiple Choicea pair of 15-watt computer speakers are connected to a 12-volt power supply. what is the electric current running through the speakers?1.25 A0.8 A12.5 A180 A
- 28. Multiple ChoiceHow many amps are in 800mA?800,000 A8 A0.8 A80 A
- 29. Multiple ChoiceIf the ammeter shows a reading of 997 mA, how many amps of current is flowing through the circuit?997 A99.7 A9.97 A.997 A
- 30. Multiple ChoiceWhen measuring a circuit you get a voltmeter reading of 3 volts and an ammeter reading of 600 mA. What is the power being supplied to the device?1.8 W1800 W0.005 W5 W
- 31. Multiple ChoiceWhat is the total current of ten 90 W light bulbs connected on the same circuit?0.75 A7.5 A1.33 A13.3 A
- 32. Multiple Choice20 identical lightbulbs are connected to a circuit. What is the power of each lightbulb if the total current is 15 A?1800 W300 W90 W8 W
- 33. Multiple ChoiceHow many 50 W light bulbs can you put on a circuit that can hold a maximum of 10 A5 Light bulbs2 Light bulbs12 Light bulbs24 Light bulbs
- Answer choicesTagsAnswer choicesTags