Physics: Forms Of Energy Quiz
Questions and Answers
- 1.
One horsepower for one hour represents how many joules?
- A.
44,760
- B.
2,685,600
- C.
746
- D.
3414
Correct Answer
B. 2,685,600Explanation
One horsepower for one hour represents 2,685,600 joules. The unit of horsepower is a measure of power, specifically the power needed to do 550 foot-pounds of work per second. Since power is the rate at which energy is transferred or converted, one horsepower for one hour represents the total energy transferred, which is 2,685,600 joules.Rate this question:
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- 2.
Kinetic and potential energies are energies of and , repectively.
- A.
Springs and gravity
- B.
Solids and liquids
- C.
Position and motion
- D.
Motions and positions
Correct Answer
D. Motions and positionsExplanation
The correct answer is "motions and positions." Kinetic energy is the energy possessed by an object due to its motion, while potential energy is the energy possessed by an object due to its position or configuration. Therefore, kinetic and potential energies are energies associated with motions and positions, respectively.Rate this question:
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- 3.
The principle of energy conservation is
- A.
A possible means for extending our fossil fuel reserves
- B.
Inconsistent with the motion of a pendulum
- C.
A law of physics often violated in thermodynamic systems
- D.
A law of physics with no known exceptions
Correct Answer
D. A law of physics with no known exceptionsExplanation
The principle of energy conservation states that energy cannot be created or destroyed but can only be transferred or transformed from one form to another. This principle has been extensively tested and observed in various physical systems, and no exceptions have been found. Therefore, it is considered a law of physics with no known exceptions.Rate this question:
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- 4.
Per person, the energy consumption in the United States is about 3.3*10(8) btu/yr. This is equivalent to a power of
- A.
11.0 w
- B.
11.0 w
- C.
11.0mw
- D.
11.0 kW
Correct Answer
D. 11.0 kWExplanation
The correct answer is 11.0 kW because the question asks for the equivalent power, and power is calculated by dividing energy consumption by time. Since the energy consumption is given as 3.3*10^8 btu/yr, we need to convert it to a unit of time that matches the unit of power, which is watts. Since there are 8760 hours in a year, we can divide 3.3*10^8 btu by 8760 hours to get the energy consumption in watts. This calculation gives us 3.76*10^4 watts, which is equivalent to 11.0 kW.Rate this question:
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- 5.
At our present rate of consumption, the estimate total remaining recoverable petroleum of the United States would supply our needs for about
- A.
138
- B.
72
- C.
40
- D.
8
Correct Answer
C. 40Explanation
The correct answer is 40. This suggests that at our current consumption rate, the estimated total remaining recoverable petroleum in the United States would be sufficient to meet our needs for approximately 40 units of time.Rate this question:
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- 6.
The average percentage of total petroleum left in the ground after primary and secondary recovery has been accomplished is about
- A.
70%
- B.
80%
- C.
50%
- D.
90%
Correct Answer
A. 70%Explanation
The correct answer is 70%. After primary and secondary recovery methods have been used to extract petroleum from the ground, on average, about 70% of the total petroleum reserves still remain underground. This means that even after significant extraction efforts, a substantial amount of petroleum resources are left untapped.Rate this question:
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- 7.
Which of the following are advantages of using coal( select all that apply)
- A.
Abundance
- B.
Envionmental friendliness
- C.
Availablility
- D.
Cheap price
Correct Answer(s)
A. Abundance
C. Availablility
D. Cheap priceExplanation
Coal has several advantages, including abundance, availability, and cheap price. Coal is a widely available and abundant fossil fuel, making it a reliable source of energy. Its abundance ensures a steady supply and reduces the risk of shortages. Additionally, coal is relatively cheap compared to other energy sources, making it an affordable option for many countries and industries. However, it is important to note that coal is not environmentally friendly and can have negative impacts on air and water quality.Rate this question:
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- 8.
What is the current annual oil consumption in USA?
- A.
134*10(9) bbl
- B.
29*10(9)bbl
- C.
8.7*10(9) bbl
- D.
- 5.5*10(9) bbl
Correct Answer
D. - 5.5*10(9) bbl -
- 9.
Which of the following are NOT considered as petroleum (select all that apply)
- A.
Methane
- B.
Tar sand
- C.
Propane
- D.
Coal
- E.
Gasoline
- F.
Liquefied natural gas
Correct Answer(s)
A. Methane
B. Tar sand
D. CoalExplanation
Methane, tar sand, and coal are not considered as petroleum because they are not derived from the same geological processes as petroleum. Methane is a natural gas, tar sand is a mixture of sand, clay, water, and bitumen, and coal is a solid fossil fuel. Petroleum, on the other hand, is a liquid fossil fuel that is formed from the remains of ancient marine organisms and undergoes specific geological processes to become the petroleum we use today.Rate this question:
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- 10.
Which of the following sequences of energy conversion fits the situation of coal-burning pwer plant?
- A.
Nuclear energy-heat- mechanical energy- electrical energy
- B.
Chemical energy-mechanical energy- heat- electrical energy
- C.
Mechanical energy- chemical energy- heat- electrical energy
- D.
Chemical energy- heat-mechanical energy- electrical energy
Correct Answer
D. Chemical energy- heat-mechanical energy- electrical energyExplanation
The correct answer is chemical energy-heat-mechanical energy-electrical energy. In a coal-burning power plant, the chemical energy stored in coal is converted into heat energy through combustion. This heat energy is then used to produce steam, which in turn drives a turbine to generate mechanical energy. Finally, the mechanical energy is converted into electrical energy by a generator.Rate this question:
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- 11.
Which of the following is a non-renewable energy source?
- A.
Tidal
- B.
Wind
- C.
Ocean current
- D.
Uranium
Correct Answer
D. UraniumExplanation
Uranium is a non-renewable energy source because it is a finite resource and cannot be replenished naturally within a human lifetime. Once uranium is extracted and used as fuel in nuclear reactors, it cannot be reused or regenerated. In contrast, tidal, wind, and ocean current energy are considered renewable sources as they rely on natural processes that are constantly replenished, such as the movement of tides, wind patterns, and ocean currents.Rate this question:
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- 12.
What is the average power of this energy intake
- A.
14.5 w
- B.
145 w
- C.
1450 w
- D.
14500 w
Correct Answer
B. 145 w -
- 13.
Select all that represents power
- A.
Joules/sec
- B.
Btu
- C.
Horsepower
- D.
Watt
- E.
Kilowatt
- F.
Kilowatt-hour
Correct Answer(s)
A. Joules/sec
C. Horsepower
D. Watt
E. KilowattExplanation
The correct answer is joules/sec, horsepower, watt, and kilowatt. All of these units represent power. Joules/sec is the standard unit for power in the International System of Units (SI). Horsepower is a unit of power commonly used in the automotive and engineering industries. Watt and kilowatt are also units of power commonly used in various fields. Kilowatt-hour is not a unit of power, but a unit of energy.Rate this question:
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- 14.
Select all that represents energy
- A.
Joule
- B.
Watt
- C.
Horsepower
- D.
Btu
- E.
Kilowatt
- F.
Calorie
Correct Answer(s)
A. Joule
E. Kilowatt
F. CalorieExplanation
The question asks for the options that represent energy. Joule, kilowatt, and calorie are all units of energy. Joule is the SI unit of energy and is commonly used in scientific calculations. Kilowatt is a unit of power, but it can also be used to measure energy over time. Calorie is a unit of energy commonly used in nutrition. Watt, horsepower, and BTU are all units of power, not energy.Rate this question:
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- 15.
What are two major problems created by depending on fossil fuels for most of our energy?
- A.
The fossil fuel resource is limited in amount and it will be used up soon
- B.
It reduces the standard of living
- C.
Unintended environmental consequences result
- D.
It is not cost effective for our economy
Correct Answer(s)
A. The fossil fuel resource is limited in amount and it will be used up soon
C. Unintended environmental consequences resultExplanation
Depending on fossil fuels for most of our energy creates two major problems. Firstly, the fossil fuel resource is limited in amount and will eventually be depleted. This means that once we exhaust these resources, we will no longer have access to them for energy production. Secondly, depending on fossil fuels leads to unintended environmental consequences. The extraction, production, and burning of fossil fuels release greenhouse gases and contribute to climate change, air pollution, and other environmental issues. These consequences have detrimental effects on ecosystems, human health, and the overall sustainability of our planet.Rate this question:
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- 16.
How many barrels of oil equivalent of energy per capia(per person) are used annually in the USA?
- A.
200 bbl
- B.
55 bbl
- C.
25 bbl
- D.
10 bbl
Correct Answer
B. 55 bblExplanation
The answer of 55 bbl suggests that annually in the USA, each person uses 55 barrels of oil equivalent of energy per capita. This indicates the average energy consumption per person in terms of oil equivalent.Rate this question:
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- 17.
According to estimate, the world petroleum wil be used up in
- A.
Less tahn 50 years
- B.
200 years
- C.
10 years
- D.
25 years
Correct Answer
A. Less tahn 50 yearsExplanation
The correct answer is less than 50 years. This estimate suggests that the world's petroleum reserves will be depleted within a time frame of less than 50 years. This implies that the rate at which petroleum is being consumed is exceeding the rate at which it is being discovered or replenished. Such depletion of petroleum reserves could have significant implications for energy sources, transportation, and various industries heavily reliant on petroleum products.Rate this question:
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- 18.
In the U.S., fossil fuels account for aobut ()% of our energy use?
- A.
83
- B.
40
- C.
30
- D.
91
Correct Answer
A. 83Explanation
Fossil fuels account for approximately 83% of our energy use in the U.S. This suggests that the majority of our energy consumption comes from non-renewable sources such as coal, oil, and natural gas. This heavy reliance on fossil fuels has significant implications for climate change and environmental sustainability, as burning these fuels releases greenhouse gases into the atmosphere. It also highlights the need for transitioning to cleaner and more sustainable energy sources to reduce our carbon footprint and mitigate the impacts of climate change.Rate this question:
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- 19.
A typical US citizen consumes () times as much energy as does a typical citizen of indian
- A.
6
- B.
2
- C.
300
- D.
14
Correct Answer
D. 14Explanation
A typical US citizen consumes 14 times as much energy as a typical citizen of India.Rate this question:
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Mar 21, 2023Quiz Edited by
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Sep 16, 2012Quiz Created by
Tclea3
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