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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define heat and temperature.
💡 Hint: Think about how you measure the warmth of water.
Question 2
Easy
Give an example of thermal equilibrium.
💡 Hint: Consider your body and the surrounding air.
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 role of temperature in heat transfer?
- It measures heat
- It dictates the direction of heat flow
- It has no role
💡 Hint: Think about how heat behaves when you touch a hot object.
Question 2
True or False: Heat can flow from a colder object to a hotter object.
- True
- False
💡 Hint: Remember how you experience heat.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 10 kg block of material at 100°C is placed in 5 kg of water at 20°C. Determine the final equilibrium temperature if no heat is lost to the surroundings (specific heat of water = 4.18 kJ/kg°C).
💡 Hint: Use the specific heat formula Q = mcΔT.
Question 2
Consider a metal rod with a coefficient of linear expansion of 1.5 x 10^-5 K^-1. Calculate how much it expands when heated from 20°C to 100°C, given its original length of 2 meters.
💡 Hint: Keep in mind the initial length of the rod.
Challenge and get performance evaluation