IGCSE Physics Thermal Physics Long Question Answers
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Objective
I can apply problem-solving strategies to effectively address long-worded IGCSE physics questions on thermal physics, demonstrating a thorough understanding of the concepts.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
6 questions
Explain the difference between evaporation and boiling, including the conditions under which each process occurs and how they affect the temperature of the remaining liquid.
A metal rod is heated at one end. Describe how thermal energy is transferred through the rod if it is made of copper, and how the process would differ if the rod were made of glass.
Part 3 of 3
Exit ticket
Quick comprehension check
“A student is tasked with designing a system to keep a small room at a constant temperature. The room loses heat to the surroundings at a rate of 500 J/s. The student has a heater that can provide heat at a rate of 800 J/s. Describe the steps the student should take to ensure the room remains at a constant temperature, explaining the concepts of heat transfer involved and how they apply to maintaining a stable thermal equilibrium. A container holds 2.0 kg of water at 25°C. A 500 W heater is immersed in the water. Assuming no heat is lost to the surroundings, calculate how long it will take for the water to reach 100°C. Then, describe what happens to the energy supplied by the heater after the water reaches 100°C, explaining the concept of latent heat and its role in the phase change of water. (Specific heat capacity of water = 4200 J/kg°C)”
Sample answer included in the free materials
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