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Heat and Temperature Video Lecture | Crash Course for Class 6
FAQs on Heat and Temperature Video Lecture - Crash Course for Class 6
| 1. What is the difference between heat and temperature? |  |
Ans. Heat is a form of energy that is transferred between objects due to a temperature difference. It flows from a hotter object to a cooler one. Temperature, on the other hand, is a measure of how hot or cold an object is, indicating the average kinetic energy of the particles in that object.
| 2. How is temperature measured? | |
Ans. Temperature is commonly measured using thermometers. There are different types of thermometers, including mercury thermometers, digital thermometers, and alcohol thermometers. Each of these devices can measure temperature in degrees Celsius (°C), Fahrenheit (°F), or Kelvin (K).
| 3. What are the three states of matter related to heat and temperature? | |
Ans. The three states of matter are solid, liquid, and gas. In solids, particles are closely packed and vibrate in place, resulting in low kinetic energy. In liquids, particles are close but can move around each other, leading to moderate kinetic energy. In gases, particles are far apart and move freely, which gives them high kinetic energy.
| 4. Why does heat flow from a hotter object to a cooler one? | |
Ans. Heat flows from a hotter object to a cooler one because of the second law of thermodynamics, which states that energy will spontaneously spread out if not hindered. This means that heat energy will move to balance the temperature difference between two objects, until they reach thermal equilibrium.
| 5. What is convection, and how does it relate to heat transfer? | |
Ans. Convection is a method of heat transfer that occurs in fluids (liquids and gases) where warmer areas of a liquid or gas rise and cooler areas sink, creating a circulation pattern. This process helps distribute heat throughout the fluid, such as when boiling water where hot water rises to the top and cooler water moves down.
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Oct 23, 2025
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