Welcome to your Thermal/Heat Energy (STUDY BY TOPICS JUNIOR CLASS) NAME EMAIL PHONE NUMBER 1. Ratio of the amount of heat radiation, transmitted through the body to the amount of heat radiation incident on it, is known as _________AbsorbanceConductanceTransmittanceInductance2. Which of the following is true?latent heat of fusion is not much affected by pressurenone of the mentionedlatent heat of vaporization is highly sensitive to pressureboth of the mentioned3. What is the ability to perform work called?ForceEnergyPowerDetermination4. Which of the following is more close to a black body?Blackboard paintBlack holesGreen leavesRed roses5. Woollen clothes keep the body warm because of wool ___________Decreases the temperatureHas no effectIs a bad conductorIncreases the temperature of body6. What type of energy is contained in the battery of a torch light?HeatLightChemicalMechanical7. On a cold morning, a metal surface will feel colder to touch than a wooden surface, because of ___________Metal has high thermal conductivityMetal has low thermal conductivityMetal has high specific heatMetal has low specific heat8. Heat flow into a system is taken to be ____, and heat flow out of the system is taken as ____negative, negativenegative, positivepositive, negativepositive, positive9. In a vacuum, heat can travel by:radiation onlyconduction onlyradiation and convectionconvection only10. Which of the following groups is all insulatorsgraphite, paper, rubberglass, plastic, paperrubber, copper, ironiron, plastic, glass11. Heat transfer and work transfer areboundary phenomenaenergy in the transitall of the mentionedenergy interactions12. On increasing the temperature of a substance gradually, its colour becomes ___________WhiteGreenYellowRed13. Heat and work areinexact differentialsall of the mentionedpath functionsdepend upon the path followed14. Which of the following is a stored energy in an accumulator battery cell?ElectricalNone of the aboveSoundLightHeat15. Electricity or electric current is theenergy supplied to a wiremovement of atoms through a wireflow of energy in a wireflow of electrons in a wire16. The heat from a fire at one end of a closed room reaches some one at the other end of the room mainly byconductiondiffusionradiationreflection17. The ability or capacity to do work is calledstrengthpowerforceenergy18. What is hot molten rock called?LavaIgneous rocksVolcanoMagma19. A swinging pendulum converts potential energy toKineticChemicalElectricalHeat20. A device which produces electricity with the aid of heat is calledThermostatWindmillThermocoupleThermometer21 out of 20Time is Up!
