Class 10th imp questions for science 🔭🧪

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Here are some important topics and potential questions for Class 10th Science, which covers Physics, Chemistry, and Biology. These are based on the most frequently asked questions and important concepts in previous years:


Physics:


1. Electricity:


Define Ohm's law and derive its mathematical expression.


What is resistance? How does it vary with temperature?


How does the resistance of a conductor depend on its length and area of cross-section?




2. Magnetic Effects of Electric Current:


State and explain Ampere's law.


What is the right-hand thumb rule?


Derive the expression for the magnetic field at the center of a current-carrying circular loop.




3. Sources of Energy:


Differentiate between renewable and non-renewable sources of energy. Give examples.


Explain how solar energy can be harnessed and its applications.




4. Light:


Derive the mirror formula and use it to solve problems.


What is the refraction of light? Explain with the help of a diagram.


Define dispersion of light and explain its cause.




5. Human Eye and Colourful World:


Explain the structure of the human eye and how it works.


What is the phenomenon of scattering of light? How is it responsible for the color of the sky?






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Chemistry:


1. Chemical Reactions and Equations:


What is a chemical reaction? Write the types of chemical reactions with examples.


Balance the following chemical equations:


1. Fe + O₂ → Fe₂O₃



2. H₂ + Cl₂ → HCl






2. Acids, Bases, and Salts:


What are acids and bases? Explain with examples.


Define pH scale. How is it important in our daily life?


What is the difference between strong and weak acids? Provide examples.




3. Metals and Non-metals:


Compare the physical and chemical properties of metals and non-metals.


What is the reactivity series? How does it help in identifying the reactivity of metals?


Explain the process of rusting and its prevention.




4. Carbon and its Compounds:


Write the general formula for alkanes, alkenes, and alkynes. Give one example of each.


What is the difference between saturated and unsaturated hydrocarbons?


Define ethanol and ethanoic acid. Write their uses.




5. Periodic Classification of Elements:


Who proposed the periodic table and how is it classified into groups and periods?


What are isotopes? Explain with an example.






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Biology:


1. Life Processes:


Explain the process of photosynthesis with the help of a diagram.


Describe the process of respiration in humans.


What are the differences between aerobic and anaerobic respiration?




2. Control and Coordination:


Explain the structure and function of the human brain.


How does the nervous system control body functions? Describe the role of neurons.


What is the role of hormones in human beings? Explain with examples.




3. How do Organisms Reproduce?


Define asexual reproduction. Give examples of different types of asexual reproduction.


What is sexual reproduction? Describe the process in humans.


Define fertilization and its types.




4. Heredity and Evolution:


Explain the laws of inheritance in terms of Mendel's experiments.


What is the significance of genetic variation in evolution?


What are fossils? How do they help us in understanding evolution?




5. Our Environment:


What is ecological balance? How do human activities disrupt it?


Define pollution. What are the different types of pollution and their effects on the environment?


Explain the concept of biodegradable and non-biodegradable waste.




6. Management of Natural Resources:


What is conservation of resources? Explain various methods to conserve natural resources.


Discuss the importance of water conservation and methods for saving water.






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Important Tips:


Diagram Practice: For topics like Light, Human Eye, Photosynthesis, etc., practice drawing well-labeled diagrams.


Formulas: Learn and revise all the important formulas in Physics and Chemistry.


Previous Years Papers: Going through previous years’ question papers helps in understanding the pattern and frequently asked questions.



Would you like me to help you prepare any specific chapter or topic further?

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