16/12/2019 Thermal/Heat Energy (STUDY BY TOPICS JUNIOR CLASS) 16/12/2019 0Comments by Gate Academy Welcome to your Thermal/Heat Energy (STUDY BY TOPICS JUNIOR CLASS) NAME EMAIL PHONE NUMBER 1. The path provided for flow of electric current is called: electric installation electric path electric diagram electric circuit 2. What type of energy is contained in the battery of a torch light? Mechanical Chemical Heat Light 3. Heat transfer and work transfer are all of the mentioned energy in the transit boundary phenomena energy interactions 4. What is the ability to perform work called? Power Determination Force Energy 5. Heat current is maximum in which of the following? Copper Copper and steel Steel and copper Steel 6. Ratio of the amount of heat radiation, transmitted through the body to the amount of heat radiation incident on it, is known as _________ Absorbance Conductance Transmittance Inductance 7. Which of the following is not a form of energy? Speed Sound Light Heat 8. Which of the following is more close to a black body? Blackboard paint Green leaves Red roses Black holes 9. At a common temperature, a block of wood and a block of metal feel equally cold or hot. The temperatures of block and wood are ___________ Greater than the temperature of the body Less than the temperature of the body Equal to the temperature of the body Has no change 10. The transfer of heat between two bodies in direct contact is called convection conduction none of the mentioned radiation 11. Woollen clothes keep the body warm because of wool ___________ Decreases the temperature Increases the temperature of body Is a bad conductor Has no effect 12. In a vacuum, heat can travel by: radiation only radiation and convection convection only conduction only 13. Heat and work are inexact differentials path functions depend upon the path followed all of the mentioned 14. A school boy riding a bicycle is converting Chemical to mechanical to kinetic energies None of the above Electrical to mechanical to kinetic energies Mechanical to kinetic energies 15. Which of the statements is NOT true? convection process requires a material medium convection can take place in liquids and gases conduction is the only means of heat transfer in solids none of the above 16. Which of the following represents the energy in storage? work none of the mentioned heat internal energy 17. Heat flow into a system is taken to be ____, and heat flow out of the system is taken as ____ positive, positive positive, negative negative, negative negative, positive 18. What type of energy is contained in a body at rest? Potential Heat Electrical Kinetic 19. black body is at 727°C. It emits energy at a rate, which is proportional to ___________ (727)2 (1000)4 (1000)2 (727)4 20. Energy has different forms which include all of the mentioned heat work none of the mentioned 1 out of 20 Time is Up! Time's up
