material
electric power - ANS ✔✔watts
energy - ANS ✔✔joules
electrical energy - ANS ✔✔kilowatt per hour
coal reserves - ANS ✔✔metric tons
natural gas - ANS ✔✔cubic feet
heating and cooling things - ANS ✔✔natural gas mostly
electricity - ANS ✔✔major contributor is coal
The amount of heat energy required to raise one gram of water by 1 degree Celsius is a
A) BTU (British Thermal Unit)
B) calorie
C) Newton
D) Kilogram - ANS ✔✔B) calorie
"My backyard solar collectors produce 350 kWh of electricity." Am I talking about energy or power?
A) Energy
B) Power
C) Neither
D) Both - ANS ✔✔A) Energy
,"My backyard solar collectors produce 350 kWh of electricity in one hour." Am I talking about energy or
power?
A) Energy
B) Power
C) Neither
D) Both - ANS ✔✔B) Power
A half-pound of propane is burned in a grill on a patio. This is an example of what energy type changing
into what other energy type?
A) Kinetic into heat
B) Heat into chemical
C) Potential into kinetic
D) Chemical into heat/thermal - ANS ✔✔D) Chemical into heat/thermal
When my cell phone receives a text, the phone vibrates. This is an example of what energy type
changing into what other energy type?
A) Potential into mechanical
B) Electric into chemical
C) Electric into kinetic/mechanical
D) Chemical into electric - ANS ✔✔C) Electric into kinetic/mechanical
I plug my cell phone into its charger over night, and its battery is recharged. This is an example of what
energy type changing into what other energy type?l
A) Electric into heat
B) Electric into potential
C) Electric into mechanical
D) Electric into chemical - ANS ✔✔D) Electric into chemical
, In some rocks in a mountain, Uranium decays into daughter elements, and the rocks are slightly
warmed. This is an example of what energy type changing into what other energy type?
A) Nuclear into heat/thermal
B) Thermal into nuclear
C) Nuclear into chemical
D) Electrical into mechanical/kinetic - ANS ✔✔A) Nuclear into heat/thermal
Large energy companies have drilled thousands of wells to exploit the Marcellus Shale formation. A
Pennsylvania motel operator finds that her previously struggling motel is suddenly fully booked most of
the time with people who are working for these natural gas operations. This is an example of
A) An externality
B) Embedded Energy
C) Energy Returned on Energy Invested - EROI
D) Energy Efficiency - ANS ✔✔A) An externality
Which of the following is not a unit of energy?
A) BTUs
B) Joules
C) Calories
D) Watts - ANS ✔✔D) Watts
Worldwide, we expect the use of which energy resource to decrease over the next 20 years?
A) Nuclear
B) Coal
C) Hydroelectric
D) None of the above - ANS ✔✔D) None of the above
Which sector of the US economy uses energy the least efficiently?
A) Residential
B) Commercial