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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is heat?
💡 Hint: Think about how something hot feels when you touch it.
Question 2
Easy
Define temperature.
💡 Hint: Consider how we measure warmth or coldness.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the primary direction of heat transfer?
- From cold to hot
- From hot to cold
- No specific direction
💡 Hint: Consider how we feel warmth when we are near a heat source.
Question 2
True or False: Specific heat capacity is the same for all substances.
- True
- False
💡 Hint: Think about why water can absorb more heat than metals before changing temperature.
Solve 3 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 3 kg block of ice at -10°C is heated until it melts and then warms to 0°C. Calculate the total heat energy used. (Use specific heat for ice = 2.1 J/kg·K and latent heat of fusion = 334,000 J/kg)
💡 Hint: Calculate each part step-by-step; remember to calculate the two stages separately.
Question 2
Consider a room where hot air from a radiator rises to the ceiling and cool air sinks. This cycle continues. Explain how this demonstrates convection and its real-life implications.
💡 Hint: Think about how this effect is utilized in heating systems.
Challenge and get performance evaluation