Heat and Internal Energy
Physics ⇒ Heat and Thermodynamics
Heat and Internal Energy starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Heat and Internal Energy.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
A 0.5 kg block of copper is heated from 20℃ to 80℃. If the specific heat capacity of copper is 390 J/kg·K, calculate the heat absorbed by the block.
A 1 kg block of ice at 0℃ is melted to water at 0℃. If the latent heat of fusion of ice is 334,000 J/kg, how much heat is required?
A gas absorbs 500 J of heat and does 200 J of work. What is the change in its internal energy?
A gas is compressed adiabatically. What happens to its internal energy?
A metal rod is heated at one end. Which method of heat transfer is primarily responsible for the increase in temperature at the other end?
A system does 100 J of work and its internal energy decreases by 250 J. How much heat was transferred to or from the system?
Calculate the amount of heat required to raise the temperature of 2 kg of water from 20℃ to 50℃. (Specific heat capacity of water = 4200 J/kg·K)
Define latent heat.
Describe the microscopic interpretation of temperature in terms of molecular motion.
Describe the process of conduction in terms of molecular motion.
Explain the difference between heat and internal energy.
Explain why the temperature of a substance does not change during a phase change, even though heat is being added.
If a system releases 150 J of heat and 50 J of work is done on the system, what is the change in internal energy?
State the First Law of Thermodynamics in words.
