QUESTION PAPER ANALYSIS AND FRAMING QUESTIONS BASED ON VARIOUS OBJECTIVES
Section A: 1-Mark Questions (Easy)
The S.I. Unit of potential difference is A) Ampere B) Volt C) Ohm D) Coulomb
Objective: To assess the learner’s knowledge and recall of basic scientific facts. Specification: The question tests factual knowledge related to the Unit of Measurement under the topic of Electricity. Bloom’s Level: Remembering (Lowest Level) Difficulty Level: Easy Time Required to Answer: 20-30 seconds Remarks: Suitable for quick assessments or quizzes but do not assess deeper understanding or higher-order thinking skills. Suitable for testing fundamental knowledge at the beginning of a unit.
What is the pH range of acidic solutions? A) 0 to 7 B) 7 to 14 C) Exactly 7 D) 7 to 10
Objective: To assess the learner’s knowledge of the pH scale. Specification: Tests factual knowledge related to acids and bases. Bloom’s Level: Remembering (Lowest Level) Difficulty Level: Easy Time Required to Answer: 20-30 seconds Remarks: Quick recall question, effective for initial assessments.
Define isotopes.
Objective: To assess the learner’s knowledge of atomic structure. Specification: Tests basic understanding of isotopes. Bloom’s Level: Remembering (Lowest Level) Difficulty Level: Easy Time Required to Answer: 20-30 seconds Remarks: Basic recall question, useful for evaluating fundamental concepts.
What is the primary source of energy for the Earth? A) Wind B) Solar C) Geothermal D) Nuclear
Objective: To assess the learner’s knowledge of energy sources. Specification: Tests factual knowledge related to energy sources. Bloom’s Level: Remembering (Lowest Level) Difficulty Level: Easy Time Required to Answer: 20-30 seconds Remarks: Simple question, ideal for quick assessments.
What is the unit of electric current? A) Ampere B) Volt C) Ohm D) Joule
Objective: To assess the learner’s knowledge of electrical units. Specification: Tests factual knowledge related to electricity. Bloom’s Level: Remembering (Lowest Level) Difficulty Level: Easy Time Required to Answer: 20-30 seconds Remarks: Quick recall question, suitable for initial assessments.
Section B: 2-Mark Questions (Moderate)
Explain the reaction of metals with water.
Objective: To assess the understanding of the chemical behavior of metals. Specification: Involves description of the reaction of metals with water. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 1-2 minutes Remarks: Tests conceptual understanding of reactions involving metals.
What is covalent bonding? Describe with an example.
Objective: To assess the understanding of chemical bonds. Specification: Requires explanation and an example of covalent bonds. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 1-2 minutes Remarks: Evaluates comprehension of chemical bonding.
How does increasing the temperature affect the rate of a chemical reaction?
Objective: To assess understanding of factors affecting chemical reactions. Specification: Based on the collision theory of chemical reactions. Bloom’s Level: Evaluating Difficulty Level: Moderate Time Required to Answer: 1-2 minutes Remarks: Tests conceptual understanding of reaction rates.
Explain the importance of decomposers in an ecosystem.
Objective: To understand the role of decomposers. Specification: Requires explanation of ecological roles. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 1-2 minutes Remarks: Tests ecological understanding.
What is the law of conservation of mass? Provide an example.
Objective: To understand and recall a fundamental scientific law. Specification: Requires definition and an example. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 1-2 minutes Remarks: Tests fundamental concepts in chemistry.
Section C: 3-Mark Questions (Moderate)
Explain Mendeleev's Periodic Law and how it helped in the classification of elements.
Objective: To analyze the historical development of the Periodic Table. Specification: Involves historical context and impact of Mendeleev’s work. Bloom’s Level: Analyzing Difficulty Level: Moderate Time Required to Answer: 3-4 minutes Remarks: Tests analytical skills and understanding of periodic trends.
Describe the process of photosynthesis and its significance in the ecosystem.
Objective: To understand and explain the biological process of photosynthesis. Specification: Involves explanation and significance of photosynthesis. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 3-4 minutes Remarks: Tests depth of knowledge in biology.
Explain the phenomenon of dispersion of light through a glass prism.
Objective: To understand the dispersion of light. Specification: Involves explanation with diagrams of light dispersion. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 3-4 minutes Remarks: Tests conceptual understanding of optics.
How does a current-carrying conductor placed in a magnetic field experience a force?
Objective: To understand the interaction between electricity and magnetism. Specification: Requires explanation of the magnetic force on conductors. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 3-4 minutes Remarks: Tests understanding of practical applications of electromagnetism.
Explain the process of evaporation and its factors.
Objective: To understand the process and influencing factors of evaporation. Specification: Involves detailed explanation of evaporation. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 3-4 minutes Remarks: Tests understanding of physical processes.
Section D: 4-Mark Questions (Difficult)
How do neurons transmit impulses? Explain the structure and function of a neuron.
Objective: To understand the mechanism of nerve impulse transmission. Specification: Requires detailed explanation and diagram of a neuron. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 4-5 minutes Remarks: Assesses comprehensive understanding of biology.
Compare asexual and sexual reproduction with examples.
Objective: To compare different reproductive strategies. Specification: Involves comparison and examples of reproduction methods. Bloom’s Level: Analyzing Difficulty Level: Moderate Time Required to Answer: 4-5 minutes Remarks: Evaluates comparative analysis skills in biology.
Explain Ohm’s Law and how it helps in determining the relationship between voltage, current, and resistance in an electric circuit.
Objective: To understand and apply Ohm’s Law. Specification: Involves explanation and application of electrical concepts. Bloom’s Level: Applying Difficulty Level: Moderate Time Required to Answer: 4-5 minutes Remarks: Tests application of electrical principles.
Describe the working principle of an electric motor.
Objective: To understand the principles and applications of electromagnetism. Specification: Requires detailed explanation of an electric motor’s workings. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 4-5 minutes Remarks: Tests understanding of electromagnetism in practical applications.
Explain how the volume of a gas changes when the temperature is increased at constant pressure.
Objective: To understand gas laws and their practical implications. Specification: Involves explanation of the relationship between temperature and gas volume. Bloom’s Level: Applying Difficulty Level: Moderate Time Required to Answer: 4-5 minutes Remarks: Tests application of physical principles.
Section E: 5-Mark Questions (Difficult, Including Diagrams)
Explain Mendel’s laws of inheritance with suitable examples. Draw a diagram to illustrate monohybrid and dihybrid crosses.
Objective: To analyze and explain Mendelian genetics. Specification: Involves detailed explanation and diagram of genetic crosses. Bloom’s Level: Analyzing
SOME MORE EXAMPLES
1. Objective: To understand the concept of refraction and its applications.
Question: Explain why a pencil partially submerged in water appears bent at the surface. Specification: Focuses on the concept of light refraction. Bloom’s Level: Analyzing Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
2. Objective: To analyze the relationship between voltage, current, and resistance in an electric circuit.
Question: How does increasing the resistance in a circuit affect the current, assuming the voltage is constant? Specification: Based on Ohm’s Law (V=IR). Bloom’s Level: Analyzing Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
3. Objective: To comprehend the principle of conservation of momentum.
Question: Describe what happens to the total momentum of a system when two objects collide in an isolated system. Specification: Focuses on the conservation of momentum in collisions. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
4. Objective: To explore the concept of photosynthesis in plants.
Question: How does the absence of light affect the rate of photosynthesis in plants? Specification: Based on the dependency of photosynthesis on light. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
5. Objective: To understand the chemical properties of acids and bases.
Question: Why does adding an acid to a base result in a neutralization reaction? Specification: Covers the neutralization process in acid-base reactions. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
6. Objective: To evaluate the factors affecting the rate of a chemical reaction.
Question: How does increasing the temperature affect the rate of a chemical reaction? Specification: Based on the collision theory of chemical reactions. Bloom’s Level: Evaluating Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
7. Objective: To understand the concept of energy transfer in ecosystems.
Question: Explain the role of producers in an ecosystem and how they transfer energy to consumers. Specification: Focuses on the energy flow in ecosystems. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
8. Objective: To comprehend the structure of an atom and isotopes.
Question: How do isotopes of an element differ from each other in terms of atomic structure? Specification: Based on the concept of isotopes. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
9. Objective: To analyze the effects of forces on motion.
Question: What is the effect of balanced and unbalanced forces on the motion of an object? Specification: Based on Newton’s laws of motion. Bloom’s Level: Analyzing Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
10. Objective: To understand the principle of conservation of mass in chemical reactions.
Question: Explain how the law of conservation of mass applies to a chemical reaction. Specification: Covers the concept of mass conservation in reactions. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
11. Objective: To evaluate the impact of human activities on the environment.
Question: How does deforestation affect the carbon cycle and global climate? Specification: Based on environmental science concepts. Bloom’s Level: Evaluating Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
12. Objective: To understand the functioning of the human digestive system.
Question: Describe the role of enzymes in the human digestive system. Specification: Focuses on biological processes in digestion. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
13. Objective: To analyze the behavior of gases under different conditions.
Question: Explain how the volume of a gas changes when the temperature is increased at constant pressure. Specification: Based on the gas laws (e.g., Charles’s Law). Bloom’s Level: Analyzing Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
14. Objective: To understand the concept of electric circuits and their components.
Question: How does connecting resistors in series and parallel affect the total resistance in a circuit? Specification: Covers the principles of series and parallel circuits. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
15. Objective: To explore the properties and applications of electromagnetic waves.
Question: What is the difference between the wavelengths of visible light and X-rays, and how does this affect their uses? Specification: Focuses on the properties of electromagnetic waves. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
16. Objective: To understand the principles of buoyancy and density.
Question: Why does an object float or sink when placed in a fluid? Specification: Based on Archimedes’ principle and density concepts. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
17. Objective: To evaluate the implications of genetic inheritance.
Question: How does a mutation in a gene affect the phenotype of an organism? Specification: Covers basic genetics and mutation effects. Bloom’s Level: Evaluating
Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
18. Objective: To analyze the process of chemical bonding.
Question: Explain how ionic bonds are formed between atoms. Specification: Focuses on the concept of ionic bonding. Bloom’s Level: Analyzing Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
19. Objective: To understand the principles of work, energy, and power.
Question: How is the concept of work related to energy transfer in a physical system? Specification: Based on mechanical work and energy principles. Bloom’s Level: Understanding Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
20. Objective: To evaluate the effects of magnetic fields on current-carrying conductors.
Question: Describe how a current- carrying conductor placed in a magnetic field experiences a force. Specification: Focuses on the interaction between electricity and magnetism. Bloom’s Level: Evaluating Difficulty Level: Moderate Time Required to Answer: 2-3 minutes
The SI unit of electric current is:
- A) Volt
- B) Ampere
- C) Ohm
- D) Coulomb
-
Which of the following is a renewable source of energy?
- A) Coal
- B) Petroleum
- C) Natural Gas
- D) Solar Energy
2-Mark Questions:
- Objective: To assess understanding of concepts and ability to apply them to simple problems.
- Specification: These questions often involve numerical problems, short explanations, or diagram-based questions.
- Bloom's Level: Understanding
- Difficulty Level: Moderate
- Time Required to Answer: 1-2 minutes
- Remarks: These questions assess a deeper understanding of concepts and the ability to apply them to real-world scenarios.
Example Questions:
- State Ohm's law. Draw a circuit diagram to verify Ohm's law experimentally.
- Define power. Derive the expression P = VI.
3-Mark Questions:
- Objective: To assess understanding of concepts, ability to apply them to complex problems, and analytical skills.
- Specification: These questions typically involve numerical problems, explanations, or diagram-based questions requiring multiple steps.
- Bloom's Level: Applying, Analyzing
- Difficulty Level: Moderate to Difficult
- Time Required to Answer: 3-5 minutes
- Remarks: These questions test a deeper understanding of concepts and the ability to apply them to complex situations.
Example Questions:
- An electric bulb is rated 220 V, 100 W. When it is operated on 110 V, what will be the power consumed?
- Draw a ray diagram to show the image formation by a convex lens when the object is placed between the focus and the optical centre. State the nature and size of the image formed.
5-Mark Questions:
- Objective: To assess understanding of concepts, ability to apply them to complex problems, analytical, and evaluative skills.
- Specification: These questions typically involve numerical problems, explanations, or diagram-based questions requiring multiple steps and critical thinking.
- Bloom's Level: Analyzing, Evaluating, Creating
- Difficulty Level: Difficult
- Time Required to Answer: 5-10 minutes
- Remarks: These questions test a comprehensive understanding of concepts and the ability to apply them to real-world scenarios.
Example Questions:
- (a) Draw a circuit diagram of an electric circuit containing a cell, a resistor, a rheostat, an ammeter, and a voltmeter. (b) How can you determine the resistance of the resistor using this circuit? (c) State the precautions to be taken while performing this experiment.
- (a) What is the difference between renewable and non-renewable sources of energy? (b) Discuss the advantages and disadvantages of using solar energy. (c) Suggest ways to conserve energy.