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Introduction to Temperature Video Lecture | Science Class 7 (Old NCERT)
FAQs on Introduction to Temperature Video Lecture - Science Class 7 (Old NCERT)
| 1. What is temperature and how is it measured? |  |
Ans.Temperature is a measure of the average kinetic energy of the particles in a substance. It is typically measured using instruments such as thermometers. Common scales for measuring temperature include Celsius (°C), Fahrenheit (°F), and Kelvin (K).
| 2. Why is temperature important in daily life? | |
Ans.Temperature is crucial in daily life as it affects weather conditions, cooking, heating and cooling systems, and even our health. Understanding temperature helps us make informed decisions about clothing, food preparation, and home comfort.
| 3. What are the different scales of temperature measurement? | |
Ans.The three primary scales of temperature measurement are Celsius, Fahrenheit, and Kelvin. Celsius is used in most countries around the world, Fahrenheit is primarily used in the United States, and Kelvin is used in scientific contexts.
| 4. How does temperature affect physical and chemical processes? | |
Ans.Temperature can significantly impact both physical and chemical processes. For example, increasing temperature generally speeds up chemical reactions, while lower temperatures can slow them down. It also affects states of matter; for instance, heating can turn solids into liquids and gases.
| 5. What is the difference between heat and temperature? | |
Ans.Heat refers to the total energy of molecular motion in a substance, while temperature is a measure of the average energy of that motion. In simpler terms, heat is the energy transferred between substances, whereas temperature is a measure of how hot or cold a substance is.
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