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Fun, engaging games to boost memory, math fluency, typing speed, and English skillsโperfect for learners of all ages.
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define conduction in your own words.
๐ก Hint: Think about how heat travels through different materials.
Question 2
Easy
What is convection?
๐ก Hint: Consider how fluids warm up and move.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
Which of the following is a mode of heat transfer?
๐ก Hint: Think about how heat can move through different mediums.
Question 2
True or False: Radiation requires a medium to transfer heat.
๐ก Hint: Recall how sunlight reaches us through space.
Solve 2 more questions and get performance evaluation
Push your limits with challenges.
Question 1
In a room with a temperature of 20ยฐC, a metal rod with one end at 100ยฐC is placed. Calculate the temperature at the other end of the rod after 10 minutes if the thermal conductivity is 150 W/mยทK.
๐ก Hint: Consider the heat flow equation and how it varies with time.
Question 2
A hot water tank loses heat due to convection and radiation. If the surface temperature of the tank is 80ยฐC and the surroundings are at 20ยฐC, calculate the heat loss rate using Newtonโs Law of Cooling and Stefan-Boltzmann Law.
๐ก Hint: Break it down into the two parts: convection and radiation per their respective laws.
Challenge and get performance evaluation