16/12/2019 Thermal/Heat Energy (STUDY BY TOPICS JUNIOR CLASS) 0Comments by Gate Academy Welcome to your Thermal/Heat Energy (STUDY BY TOPICS JUNIOR CLASS) NAME EMAIL PHONE NUMBER 1. Which of the following groups is all insulatorsglass, plastic, paperrubber, copper, ironiron, plastic, glassgraphite, paper, rubber2. What is the ability to perform work called?PowerDeterminationEnergyForce3. The sprinkling of water reduces slightly the temperature of a closed room because of ______Water is a bad conductor of heatSpecific heat of water is highTemperature of water is less than that of the roomWater has large latent heat of vaporisation4. Which of the following represents the energy in storage?internal energynone of the mentionedheatwork5. Heat flow into a system is taken to be ____, and heat flow out of the system is taken as ____negative, positivepositive, positivenegative, negativepositive, negative6. Which of the following is true?both of the mentionednone of the mentionedlatent heat of fusion is not much affected by pressurelatent heat of vaporization is highly sensitive to pressure7. The transfer of heat between two bodies in direct contact is callednone of the mentionedconductionradiationconvection8. The transfer of heat between a wall and a fluid system in motion is calledradiationconvectionnone of the mentionedconduction9. When a torch is used to light up a dark room what energy conversions are likely to take place?Electrical to lightChemical to lightElectrical to chemicalElectrical to heat10. Woollen clothes keep the body warm because of wool ___________Decreases the temperatureIs a bad conductorHas no effectIncreases the temperature of body11. Which of the following is a type of energy?none of the mentionedhigh grade energylow grade energyboth of the mentioned12. In a vacuum, heat can travel by:radiation onlyconvection onlyconduction onlyradiation and convection13. The process of producing energy by utilizing heat trapped inside the earth surface is called ___Hydrothermal energySolar energyGeo-Thermal energyWave energy14. Ratio of the amount of heat radiation, transmitted through the body to the amount of heat radiation incident on it, is known as _________InductanceTransmittanceAbsorbanceConductance15. The energy conversions in a hydroelectric power supply issound → kinetic → mechanical → electricalpotential → kinetic → mechanical → electricalheat → kinetic → mechanical → electricalnone of the above16. Heat and work areall of the mentionedinexact differentialsdepend upon the path followedpath functions17. When a torch light is switched on, the statement that most represents the energy conversion is that electrical energy is converted tolight and heat energies onlylight energy onlyheat energy onlypotential and kinetic energies only18. Which of the following is a stored energy in an accumulator battery cell?LightElectricalNone of the aboveHeatSound19. Which of the following is not a form of energy?LightSoundSpeedHeat20. How much is the average temperature at depth of 10 km of earth surface?20°C900°C200°C650°C21 out of 20Time is Up!
