16/12/2019Thermal/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. black body is at 727°C. It emits energy at a rate, which is proportional to ___________ (1000)4 (1000)2 (727)4 (727)22. Which of the following represents the energy in storage? work internal energy heat none of the mentioned3. The energy conversions in a hydroelectric power supply is potential → kinetic → mechanical → electrical none of the above sound → kinetic → mechanical → electrical heat → kinetic → mechanical → electrical4. In an electric motor Electrical energy is converted into sound energy Chemical energy is converted into electrical energy Electrical energy is converted to Mechanical energy Electrical energy is converted into heat energy5. What is the ability to perform work called? Energy Force Determination Power6. Heat and work are inexact differentials all of the mentioned depend upon the path followed path functions7. Which of the following is a type of energy? none of the mentioned low grade energy high grade energy both of the mentioned8. The sound wave moves faster in alcohol solid water air vacuum9. The heat from a fire at one end of a closed room reaches some one at the other end of the room mainly by conduction reflection diffusion radiation10. Energy has different forms which include all of the mentioned heat work none of the mentioned11. Which of the following is the correct expression for Ohms law? I = V * R R = I/ V V = R/ I R = V/ I12. Which of the following is not a form of energy? Heat Sound Light Speed13. Electricity or electric current is the flow of energy in a wire flow of electrons in a wire movement of atoms through a wire energy supplied to a wire14. A swinging pendulum converts potential energy to Electrical Kinetic Chemical Heat15. If you rub your palms together for some time, you feel warm. The action amounts to converting solar → chemical → mechanical → heat energy potential → chemical → heat energy chemical → potential → heat energy potential → kinetic → heat energy16. Heat transfer and work transfer are boundary phenomena energy in the transit energy interactions all of the mentioned17. What type of energy is contained in a body at rest? Kinetic Electrical Potential Heat18. In a vacuum, heat can travel by: conduction only radiation only convection only radiation and convection19. The ability or capacity to do work is called energy strength power force20. What type of energy is contained in the battery of a torch light? Mechanical Light Chemical Heat21 out of 20Time is Up!