Energy And Energy Transfer Quiz: How Much You Know About Energy And Energy Transfer?
Questions : 12
| Total Attempts: 721
| Recent Updated: 21-Feb-2021
The energy changes in the cosmos over time are designate by energy. In many of its forms, energy can be used in natural processes, or to provide some service to society for operating machines such as heating, refrigeration, lighting, or mechanical work. For example, to heat a house, the fuel in the furnace burns, whose chemical potential energy is converted into thermal energy, which is then transferred to the house air to raise the temperature. Energy transformation, also known as energy conversion, is the process of changing energy from one form to another. In physics, energy is a quantity that provides the capacity to perform work or provides heat. According to the law of conservation of energy, energy is transferable to a different location or object, but it cannot be created or destroyed. Let's know more about Energy And Energy Transfer.
1. The most efficient gas-fired electrical power stations can achieve _______% conversion efficiency.
A. 45%
B. 50%
C. 55%
D. 65%
2. Heat always travels from _____to____.
A. Warm to Warm
B. Cool to Cool
C. Warm to Cool
D. Cool to Warm
3. A stovetop will cook your food because of:
A. Convection
B. Conduction
C. Radiation
D. None of the above
4. The thermal energy that is transferred from one substance to another is:
A. Thermal energy
B. Thermal conductivity
C. Thermoset
D. Heat
5. If you boil water in a kettle, the heat is transferred through which from the fire to the pot?
A. Convection
B. Conduction
C. Radiation
D. Inflation
6. While watching the campfire you feel the heat of the glowing fire via:
A. Radiation
B. Conduction
C. Convection
D. Conservation
7. Combustion changes the potential chemical energy into which?
A. Static energy
B. Dynamic energy
C. Kinetic energy
D. None of these
8. The transfer of energy from one molecule to another by direct contact is called:
A. Conduction
B. Convection
C. Conservation
D. All of the above
9. Radiation is the transfer of heat by:
A. Magnetic waves
B. Electrochemical waves
C. Electromagnetic waves
D. None of these
10. Which of the following is an example of a Thermal Insulator?
A. Iron
B. Aluminum
C. Wood
D. Copper
11. Which among the following is an example of a Thermal conductor?
A. Iron
B. Aluminum
C. Copper
D. All of the above
12. The Generators convert the mechanical energy to:
A. Potential energy
B. Rotational energy
C. Chemical energy
D. Electrical energy
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