Lesson 1 Quiz Points Awarded 10 Points Missed 0 Percentage 100 1 A 100 watt incandescent light bulb is operated for 120 hours and a 15 watt fluorescent light bulb is operated for the same period of time At 10 cents per kWh what is the cost savings of the fluorescent bulb A B C D 0 01 0 50 0 10 1 02 Points Earned 1 1 Correct Answer D Your Response D 2 A Btu has more energy than a calorie Points Earned 1 1 Correct Answer True Your Response True 3 is a unit of power A B C D Quad Btu h Joule Watt hour Points Earned 1 1 Correct Answer B Your Response B 4 What is the unit of power A B C D Btu kWh Joule s Volts Points Earned 1 1 Correct Answer C Your Response C 5 Most of the energy that the US needs today is coming from A B C D biomass nuclear petroleum solar Points Earned 1 1 Correct Answer C Your Response C 6 Nuclear fusion is classified as renewable energy Points Earned 1 1 Correct Answer True Your Response True 7 Energy can be converted from one form to another Points Earned 1 1 Correct Answer True Your Response True 8 Energy is defined as property of matter that can be converted to A B C D E Work Heat Radiation All of the above None of the above Points Earned 1 1 Correct Answer D Your Response D 9 One calorie is defined as the amount of energy that is required to raise the temperature of A B C D 1 1 1 1 lb of water to 1 C g of water to 1 C lb of water to 1 F gal of water to 1 C Points Earned 1 1 Correct Answer B Your Response B 10 How much energy is in one Btu A Enough to heat one gallon of water one degree Fahrenheit B Enough to heat one pound of water one degree Fahrenheit C Enough to heat one gram of water one degree Celsius D Enough to heat your room to a comfortable temperature Points Earned 1 1 Correct Answer B Your Response B Lesson 1 Practice Quiz Questions Points Awarded 16 Points Missed 14 Percentage 53 Forms of Energy 1 A football travelling above the ground in the air has A B C D Chemical Heat Mechanical Electrical Kinetic energy is the energy taht a body possesses by vitue of its motion Potential energy is the energy that a body possesses Points Earned 1 1 Correct Answer C Your Response C 2 Energy contained in natural gas is chemical Chemical energy is the energy that is locked in the bonds of a molecule Points Earned 1 1 Correct Answer True Your Response True 3 A moving automobile has potential energy Kinetic energy is a form of mechanical energy that a body possesses by virtue of its motion Potential energy is the energy that a body possesses by virtue of its position relative to a reference point Points Earned 0 1 Correct Answer False Your Response True 4 Energy stored in coal is thermal or heat Chemical Energy is the energy that is locked in the bonds that hold atoms together in a molecule Points Earned 1 1 Correct Answer False Your Response False Energy Units 5 BTU is a unit of energy A unit of energy equal to the amount of energy needed to raise the temperature of one pound of water by one degree Fahrenheit Points Earned 0 1 Correct Answer True Your Response False 6 calorie is a unit of energy The amount of energy needed to raise the temperature of one gram of water by one degree Celsius Points Earned 1 1 Correct Answer True Your Response True 7 calorie second is a unit of energy Calorie is the amount of energy needed to raise the temperature of one gram of water by one degree Celsius Power is the rate at which energy is used Points Earned 1 1 Correct Answer False Your Response False 8 Food calorie is the amount of power you get from food A unit of energy equal to one kilocalorie The food calorie is often used when measuring the energy content of food Points Earned 1 1 Correct Answer False Your Response False 9 A refregirator consumes 273 watts and is operated for 10 hours a day What is the energy consumption is a day in kWh A B C D 6 6 kWh 2730 kWh 6552 kWh 2 7 kWh Points Earned 1 1 Correct Answer D Your Response D 10 A refregirator consumes 241 watts and is operated for 12 hours a day What is the energy consumption is a day in kWh A B C D 5784 kWh 5 8 kWh 2892 kWh 2 9 kWh Points Earned 1 1 Correct Answer D Your Response D Daily Water heater Energy 11 A 50 gallon electric water heater that supplies hot water is located in the basement of a house If the electric heater is rated at 3 1 kW and is used for 8 hours every day what is the daily energy consumption in kWh A B C D 0 07 24 8 1 03 0 02 kWh kWh kWh kWh Points Earned 1 1 Correct Answer B Your Response B 12 An Electric stove top is used by a family for cooking The stove has 1 2 kW electric coil and is used for 0 69 hours during mornings and 1 9 hours during evening for dinner preparation What is the daily energy consumption in kWh A B C D 3 11 kWh 0 kWh 1 57 kWh 0 13 kWh Points Earned 0 1 Correct Answer A Your Response C Computer Daily Energy Consumption 13 A student in a dorm room leaves the computer which is rated at 67 Watts on 22 hours a day What is the daily energy consumption A B C D 1 5 Wh 1474 kWh 1474 Wh 61 4 kWh Points Earned 1 1 Correct Answer C Your Response C Computer Daily Energy Savings 14 Angela has a Computer that is rated at 60 Watts and she uses it for 8 hours a day and turns off after the use Angela s sister Amanda also has a computer that is rated at 60 Watts but she leaves the computer on all the time 24 hours How much energy in kWh Angela is saving by turning off the computer when not used A B C D E 0 96 Wh 960 kWh 0 48 kWh 0 96 kWh 1 44 kWh Points Earned 1 1 Correct Answer D Your Response D 15 Angela has a Computer that is rated at 64 Watts and she uses it for 6 hours a day and turns off after the use Angela s sister Amanda also has a computer that is rated at 64 Watts but she leaves the computer on all the time 24 hours How much energy in kWh Angela is saving by turning off the computer when not used in the month of …
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