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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define heat in scientific terms.
💡 Hint: Think about energy transfer.
Question 2
Easy
What is temperature and how is it measured?
💡 Hint: Relate to how hot or cold something feels.
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 heat?
- Energy transferred by work
- A measure of how hot something is
- Energy transferred due to temperature difference
💡 Hint: Think about how energy moves between hot and cold.
Question 2
Specific heat capacity is measured in which unit?
- Joules/kg·°C
- Joules/kg
- Kelvin/kg
💡 Hint: Focus on the relationship between mass, energy, and temperature change.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If 5 kg of ice at -10°C is heated until it completely melts and the water reaches 0°C, what amount of heat is needed? (Use the specific heat of ice = 2,090 J/kg·°C, Lf = 334,000 J/kg).
💡 Hint: Calculate heat for both heating the ice and then melting it.
Question 2
Explain how a cooling curve graphically represents the change in temperature during phase transitions and what it can tell us about energy transfer.
💡 Hint: Examine the graph’s sections where the temperature remains constant.
Challenge and get performance evaluation