EGEE 102 FINAL EXAM 2025
QUESTIONS AND ANSWERS
Nuclear fusion is a renewable source of energy.
T/F - ....ANSWER ...-TRUE
Energy can be converted to which of the following?
Heat
Radiation
Work
All of the Above - ....ANSWER ...-all of the above
The energy possessed by a ball thrown by a quarterback is of the form:
Mechanical
Radiation
Chemical
Thermal - ....ANSWER ...-Mechanical
Which consumes the least amount of energy per day?
…FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 1
,Eating your recommended amount of Calories
Driving a car 18 miles
Heating a house in the US
Powering a 100 W lightbulb for 24 hours - ....ANSWER ...-Eating your
recommended amount of Calories
Energy from the Sun is coming to the earth in the form of
Radiation
Mechanical
Chemical
Nuclear - ....ANSWER ...-Radiation
Energy can be converted from one form to another.
T/F - ....ANSWER ...-TRUE
Which one of the following is a unit of power?
Joule
Btu/h
Watt/hour
Quad - ....ANSWER ...-Btu/h
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,One BTU of energy is enough to do what?
Heat your room to a comfortable temp
Heat one pound of water by one degree F
Heat one gram of water by one degree C
Heat one gallon of water by one degree F - ....ANSWER ...-Heat one pound of
water by one degree Fahrenheit
One calorie is defined as the amount of energy that is required to raise the temperature
of _____.
1 lb of water by 1 degree F
1 g of water by 1 degree C
1 lb of water by 1 degree C
1 gal of water by 1 degree C - ....ANSWER ...-1 g of water by 1 degree C
A 108 watt incandescent light bulb is operated for 63 hours, and a 10 watt LED light bulb
is operated for the same period of time. At 0.1 dollars per kWh, what is the cost savings
(units of $) of the LED bulb? Answer to two decimal places, do not include unit symbols.
- ....ANSWER ...-108 W x 63 = 6,804/1000 = 6.804
10 W x 63 = 630/1000 = 0.63
6.804-0.63 = 6.174
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, 6.174 x 0.1 = 0.62
An electric lightbulb rated for 87 Watts is used for 5 hours. How much energy is burned?
Answer in KWhs, do not include units into the space. - ....ANSWER ...-87 W x 5
hours = 435/1000 = 0.435
Which of these fuels has the smallest percent of the the global energy supply?
wind
coal
oil
natural gas - ....ANSWER ...-Wind
The U.S. has highest crude oil reserves in the world.
T/F - ....ANSWER ...-FALSE
Which energy source accounts for the greatest proportion of electricity generation in the
US?
Natural gas
Petroleum
Coal
Hydro - ....ANSWER ...-Natural Gas
Which fuel supplies the greatest proportion of primary energy in the U.S.?
…FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 4
QUESTIONS AND ANSWERS
Nuclear fusion is a renewable source of energy.
T/F - ....ANSWER ...-TRUE
Energy can be converted to which of the following?
Heat
Radiation
Work
All of the Above - ....ANSWER ...-all of the above
The energy possessed by a ball thrown by a quarterback is of the form:
Mechanical
Radiation
Chemical
Thermal - ....ANSWER ...-Mechanical
Which consumes the least amount of energy per day?
…FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 1
,Eating your recommended amount of Calories
Driving a car 18 miles
Heating a house in the US
Powering a 100 W lightbulb for 24 hours - ....ANSWER ...-Eating your
recommended amount of Calories
Energy from the Sun is coming to the earth in the form of
Radiation
Mechanical
Chemical
Nuclear - ....ANSWER ...-Radiation
Energy can be converted from one form to another.
T/F - ....ANSWER ...-TRUE
Which one of the following is a unit of power?
Joule
Btu/h
Watt/hour
Quad - ....ANSWER ...-Btu/h
…FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 2
,One BTU of energy is enough to do what?
Heat your room to a comfortable temp
Heat one pound of water by one degree F
Heat one gram of water by one degree C
Heat one gallon of water by one degree F - ....ANSWER ...-Heat one pound of
water by one degree Fahrenheit
One calorie is defined as the amount of energy that is required to raise the temperature
of _____.
1 lb of water by 1 degree F
1 g of water by 1 degree C
1 lb of water by 1 degree C
1 gal of water by 1 degree C - ....ANSWER ...-1 g of water by 1 degree C
A 108 watt incandescent light bulb is operated for 63 hours, and a 10 watt LED light bulb
is operated for the same period of time. At 0.1 dollars per kWh, what is the cost savings
(units of $) of the LED bulb? Answer to two decimal places, do not include unit symbols.
- ....ANSWER ...-108 W x 63 = 6,804/1000 = 6.804
10 W x 63 = 630/1000 = 0.63
6.804-0.63 = 6.174
…FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 3
, 6.174 x 0.1 = 0.62
An electric lightbulb rated for 87 Watts is used for 5 hours. How much energy is burned?
Answer in KWhs, do not include units into the space. - ....ANSWER ...-87 W x 5
hours = 435/1000 = 0.435
Which of these fuels has the smallest percent of the the global energy supply?
wind
coal
oil
natural gas - ....ANSWER ...-Wind
The U.S. has highest crude oil reserves in the world.
T/F - ....ANSWER ...-FALSE
Which energy source accounts for the greatest proportion of electricity generation in the
US?
Natural gas
Petroleum
Coal
Hydro - ....ANSWER ...-Natural Gas
Which fuel supplies the greatest proportion of primary energy in the U.S.?
…FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 4
