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Question: What is the dimensional formula for energy?Options: [M^1 L^2 T^-2][M^1 L^1 T^-2][M^1 L^2 T..
Question: Which of the following is a derived unit?Options: MeterKilogramSecondNewtonCorrect Answer:..
Question: What is the SI unit of force?Options: NewtonPascalJouleWattCorrect Answer: NewtonSolution:..
Question: What is the primary reason for using insulation in buildings?Options: To prevent conductio..
Question: Which of the following factors does NOT affect the rate of heat transfer by conduction?Opt..
Question: What is the unit of thermal conductivity?Options: W/m·KJ/kg·KK/WJ/m·sCorrect Answer: W/m·K..
Question: Which of the following is an example of convection?Options: Heating a metal rod in a flame..
Question: What is the Stefan-Boltzmann law related to?Options: ConductionConvectionRadiationThermal ..
Question: If two objects are in thermal contact, what will happen to their temperatures over time?Op..
Question: What is the main mechanism of heat transfer in liquids and gases?Options: ConductionConvec..
Question: In which process does heat transfer occur without any physical movement of the material?Op..
Question: Which of the following materials is the best conductor of heat?Options: WoodAirCopperGlass..
Question: What is the primary mode of heat transfer in a vacuum?Options: ConductionConvectionRadiati..
Question: What is the relationship between temperature and kinetic energy of particles in a substanc..
Question: In which of the following processes does the temperature of the system remain constant?Opt..
Question: What is the latent heat of fusion?Options: Heat required to change a solid to a liquidHeat..
Question: Which law states that the total energy of an isolated system remains constant?Options: Fir..
Question: What happens to the temperature of a gas when it expands adiabatically?Options: It increas..
Question: Which of the following processes involves a change in temperature?Options: Isothermal proc..
Question: If 100 g of water at 0°C is mixed with 100 g of water at 100°C, what will be the final tem..
Question: Which of the following statements is true about thermal equilibrium?Options: Heat flows fr..
Question: What is the SI unit of temperature?Options: CelsiusFahrenheitKelvinRankineCorrect Answer: ..
Question: In an isochoric process, what happens to the internal energy of an ideal gas when heat is ..
Question: Which of the following statements is true regarding the first law of thermodynamics?Option..
Question: In a cyclic process, what is the net change in internal energy?Options: PositiveNegativeZe..
Question: If a system absorbs 100 J of heat and does 40 J of work, what is the change in internal en..
Question: What is the work done by a gas during an isobaric expansion?Options: ZeroPΔVΔUQCorrect Ans..
Question: In an isothermal process for an ideal gas, which of the following is true?Options: The int..
Question: If 500 J of heat is added to a system and 200 J of work is done by the system, what is the..
Question: What does the first law of thermodynamics state?Options: Energy can be created and destroy..