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. Energy is a point function all of the mentioned extensive property property of the system 2. black body is at 727°C. It emits energy at a rate, which is proportional to ___________ (1000)4 (1000)2 (727)2 (727)4 3. A swinging pendulum converts potential energy to Electrical Chemical Kinetic Heat 4. Fuel is any material which when burnt produces sound energy light energy chemical energy heat energy 5. A device which produces electricity with the aid of heat is called Thermocouple Thermometer Thermostat Windmill 6. Which of the following is not a form of energy? Sound Heat Light Speed 7. Which of the statements is NOT true? convection can take place in liquids and gases none of the above convection process requires a material medium conduction is the only means of heat transfer in solids 8. Ratio of the amount of heat radiation, transmitted through the body to the amount of heat radiation incident on it, is known as _________ Inductance Transmittance Conductance Absorbance 9. Heat flow into a system is taken to be ____, and heat flow out of the system is taken as ____ positive, positive negative, positive negative, negative positive, negative 10. What is the ability to perform work called? Force Power Determination Energy 11. When a torch light is switched on, the statement that most represents the energy conversion is that electrical energy is converted to heat energy only potential and kinetic energies only light and heat energies only light energy only 12. Which of the following types of energy can be present in molecules? electronic energy and vibrational energy all of the mentioned translational and rotational kinetic energy chemical energy and nuclear energy 13. Which of the following represents the energy in storage? heat work internal energy none of the mentioned 14. On increasing the temperature of a substance gradually, its colour becomes ___________ Yellow Green Red White 15. What is hot molten rock called? Igneous rocks Magma Lava Volcano 16. 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 Has no change Equal to the temperature of the body 17. Heat transfer and work transfer are energy in the transit all of the mentioned boundary phenomena energy interactions 18. The sound wave moves faster in vacuum water air solid alcohol 19. The energy conversions in a hydroelectric power supply is none of the above sound → kinetic → mechanical → electrical heat → kinetic → mechanical → electrical potential → kinetic → mechanical → electrical 20. What type of energy is contained in a body at rest? Kinetic Potential Heat Electrical 1 out of 20 Time is Up! Time's up
