List any three qualities of an ideal source of energy.
List any three qualities of an ideal source of energy.
Official answer
An ideal source of energy should possess the following qualities:
- High Energy Output: It should do a large amount of work per unit volume or mass (high calorific value).
- Easy Accessibility: It should be easily accessible and easy to obtain.
- Easy Storage and Transportation: It should be easy to store and transport safely without high risk.
- Economical: It should be cost-effective and affordable.
Marking scheme
- 1.Listing first quality (e.g., high work per unit mass/volume): 1 Mark
- 2.Listing second quality (e.g., easy accessibility/availability): 1 Mark
- 3.Listing third quality (e.g., easy to store/transport or eco-friendly): 1 Mark
Hint
Think about what makes a fuel efficient, easy to use, and safe for the environment.
Quick oral answer
An ideal source of energy should do a large amount of work per unit mass, be easily accessible, and be easy to store and transport.
Common mistakes
- 1.Listing qualities that are highly specific to only one type of fuel (e.g., 'should not produce smoke' is specific to chemical fuels, whereas 'ideal source' is a broader term).
- 2.Forgetting to mention efficiency (work done per unit mass).
Analysis and explanation
An ideal source of energy is evaluated based on its efficiency, availability, convenience, and environmental impact. A high energy output per unit mass ensures efficiency. Easy accessibility and transportability make it practical for widespread use, while being economical ensures it is accessible to all sections of society. Additionally, it should cause minimal environmental damage (low pollution).
Interesting facts
Hydrogen gas has the highest calorific value among common fuels, but it is not yet considered an ideal domestic fuel because it is difficult to store and transport safely.
Question details
Q18 of 36 questions
- Board
- CBSE
- Class
- Class 10
- Subject
- Science
- Year
- 2014
- Section
- Section SECTION-A
- Marks
- 3
- Type
- Short Answer
- Chapter
- Our Environment
- Topic
- Sources of Energy
- Bloom's level
- Remembering
- Syllabus topic
- Qualities of an ideal source of energy
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Frequently asked questions
How many marks does this question carry in CBSE Class 10 Science 2014?
This question carries 3 marks in the CBSE Class 10 Science 2014 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Our Environment" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Sources of Energy" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2014 paper?
This is a Short Answer question from Section SECTION-A in the CBSE Class 10 Science 2014 paper.