EGEE 102 Review Exam 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
The energy of electrons in motion is called
A) Electricity
B) Potential
C) Kinetic energy
D) Chemical energy - CORRECT ANSWER - Electricity
90% of home heating in this country uses _______ or _______ as the energy sources. -
CORRECT ANSWER - E) Natural gas and electricity
At the current rate of consumption approximately how long will the US coal reserves last? -
CORRECT ANSWER - 242 years
Coal reserves for the World at the present rate of consumption will last for about ________. -
CORRECT ANSWER - 164 years
Food Calorie - CORRECT ANSWER - The amount of energy needed to raise the temperature
of one kilogram of water one degree Celsius (used in nutrition)
Joule - CORRECT ANSWER - Smaller than a calorie (used in science and engineering)
Kilowatt Hour - CORRECT ANSWER - An amount of energy from the steady production or
consumption of one kilowatt of power for a period of one hour (used in electrical fields)
Therm - CORRECT ANSWER - A unit describing the energy contained in natural gas (used
in home heating devices)
, Electromagnetic Spectrum - CORRECT ANSWER - The lower the energy, the longer the
wavelength and lower the frequency, and vice versa
Energy Intensity - CORRECT ANSWER - The relationship between energy consumption and
growth in GDP; an important factor that affects changes in energy consumption over time.
The energy possessed by a ball thrown by a quarterback is of the form? (Hint: type of energy) -
CORRECT ANSWER - Mechanical
(T or F) Energy cannot be destroyed or created—it can only change its form. - CORRECT
ANSWER - true
Where do we get most of our energy? - CORRECT ANSWER - Nonrenewable energy
sources (fossil fuels: oil, natural gas, coal)
Which energy source accounts for the greatest portion of electricity generation in the US? -
CORRECT ANSWER - Fossil Fuels
The energy demand in the United States accounts for approximately _____ percent of the world's
energy demand. - CORRECT ANSWER - 25
Which one of the following energy conversion devices has the highest energy efficiency? -
CORRECT ANSWER - generator
In a heat engine, thermal energy is converted into ________ energy. - CORRECT ANSWER -
mechanical
In a fossil fuel fired power plant, chemical energy is finally converted into ______ energy. -
CORRECT ANSWER - electrical
ACTUAL Exam Questions and CORRECT
Answers
The energy of electrons in motion is called
A) Electricity
B) Potential
C) Kinetic energy
D) Chemical energy - CORRECT ANSWER - Electricity
90% of home heating in this country uses _______ or _______ as the energy sources. -
CORRECT ANSWER - E) Natural gas and electricity
At the current rate of consumption approximately how long will the US coal reserves last? -
CORRECT ANSWER - 242 years
Coal reserves for the World at the present rate of consumption will last for about ________. -
CORRECT ANSWER - 164 years
Food Calorie - CORRECT ANSWER - The amount of energy needed to raise the temperature
of one kilogram of water one degree Celsius (used in nutrition)
Joule - CORRECT ANSWER - Smaller than a calorie (used in science and engineering)
Kilowatt Hour - CORRECT ANSWER - An amount of energy from the steady production or
consumption of one kilowatt of power for a period of one hour (used in electrical fields)
Therm - CORRECT ANSWER - A unit describing the energy contained in natural gas (used
in home heating devices)
, Electromagnetic Spectrum - CORRECT ANSWER - The lower the energy, the longer the
wavelength and lower the frequency, and vice versa
Energy Intensity - CORRECT ANSWER - The relationship between energy consumption and
growth in GDP; an important factor that affects changes in energy consumption over time.
The energy possessed by a ball thrown by a quarterback is of the form? (Hint: type of energy) -
CORRECT ANSWER - Mechanical
(T or F) Energy cannot be destroyed or created—it can only change its form. - CORRECT
ANSWER - true
Where do we get most of our energy? - CORRECT ANSWER - Nonrenewable energy
sources (fossil fuels: oil, natural gas, coal)
Which energy source accounts for the greatest portion of electricity generation in the US? -
CORRECT ANSWER - Fossil Fuels
The energy demand in the United States accounts for approximately _____ percent of the world's
energy demand. - CORRECT ANSWER - 25
Which one of the following energy conversion devices has the highest energy efficiency? -
CORRECT ANSWER - generator
In a heat engine, thermal energy is converted into ________ energy. - CORRECT ANSWER -
mechanical
In a fossil fuel fired power plant, chemical energy is finally converted into ______ energy. -
CORRECT ANSWER - electrical
