Mass Introduction: Mass is a fundamental property of matter that quantifies the amount of substance in an object. It is a scalar quantity and is typically measured in units such as kilograms (kg) or grams (g). The mass of an object is constant and independent of its location, meaning it is the same regardless of … Read more
A frictionless pulley is a mechanical device that allows a flexible material, such as a rope or belt, to move over it with minimal resistance. The absence of friction enables the pulley to rotate freely without dissipating energy due to frictional forces. In scenarios where a mass is connected to a pulley system, the mass … Read more
1. What is motion? 2. How is motion different from rest? 3. What is the SI unit of distance? 4. Define speed. 5. Differentiate between speed and velocity. 6. What is uniform motion? 7. Explain non-uniform motion. 8. Define acceleration. 9. How is acceleration different from deceleration? 10. What is the SI unit of acceleration? … Read more
1. What is rainwater harvesting? 2. Why is rainwater harvesting important? 3. What are the main components of a rainwater harvesting system? 4. How does a rooftop serve as a catchment surface in rainwater harvesting? 5. Can rainwater harvested from rooftops be used for drinking? 6. What is the role of filters in a rainwater … Read more
1. What is a nuclear power plant? 2. How does a nuclear power plant produce electricity? 3. What is the fuel used in nuclear power plants? 4. What is a nuclear reactor in a power plant? 5. How does nuclear fission occur in a nuclear reactor? 6. What is the purpose of the control rods … Read more
1. What is a hydraulic JCB project using syringes? 2. What are the main components of a hydraulic JCB project using syringes? 3. How does a hydraulic system work in the context of this project? 4. What is the purpose of using syringes in the project? 5. How can students demonstrate the lifting and lowering … Read more
1. What is hydroponics farming? 2. How do plants obtain nutrients in hydroponics farming? 3. What are the advantages of hydroponics farming over traditional soil-based farming? 4. What types of systems are used in hydroponics farming? 5. How does the nutrient film technique (NFT) work in hydroponics? 6. What is the role of a nutrient … Read more
1. What is wind energy? 2. How do wind turbines generate electricity? 3. What is the primary source of energy for wind? 4. What is the difference between onshore and offshore wind farms? 5. Why are windy areas preferred for installing wind turbines? 6. How does the height of a wind turbine tower affect its … Read more
1. What is the purpose of the sand in the water purification process? 2. How does the sand filtration stage contribute to improving water quality? 3. Why is gravel used in the water purification process? 4. What role does the gravel layer play in the purification process? 5. How does the four-stage water purification process … Read more
1. What is a hydroelectric dam? 2. How does a hydroelectric dam generate electricity? 3. What is the source of energy in a hydroelectric dam? 4. What is the role of a reservoir in a hydroelectric dam? 5. How does the height of the dam affect the electricity generation in a hydroelectric power plant? 6. … Read more
1. What is the digestive system? 2. Name the primary organs of the digestive system. 3. What is the role of the mouth in digestion? 4. What is peristalsis? 5. How does food move from the mouth to the stomach? 6. What role does the stomach play in digestion? 7. What is gastric acid, and … Read more
1. What is climate change? 2. What is the primary driver of current climate change? 3. How do greenhouse gases contribute to climate change? 4. What are the main greenhouse gases responsible for climate change? 5. How does deforestation contribute to climate change? 6. What is the difference between weather and climate? 7. How does … Read more
1. What is the water cycle? 2. What are the main stages of the water cycle? 3. How does evaporation occur in the water cycle? 4. What is condensation in the water cycle? 5. How does precipitation happen in the water cycle? 6. What factors influence the type of precipitation (rain, snow, sleet, hail) in … Read more
1. What is a parallel circuit? 2. How does the current flow in a parallel circuit? 3. What happens to the voltage in a parallel circuit? 4. How are components connected in a parallel circuit? 5. What is the total resistance in a parallel circuit? 6. How does adding resistors affect the total resistance in … Read more
1. What is a series circuit? 2. What happens to the current in a series circuit? 3. How are components connected in a series circuit? 4. What is the total resistance in a series circuit? 5. How does adding resistors affect the total resistance in a series circuit? 6. If one bulb in a series … Read more