- APotential energy
- BKinetic energy
- CHeat energy
- DElectrical energy
Thermal Physics - Quiz
- AHeating
- BCooling
- CConvection
- DRadiation
- AHeat always flows from a system at lower temperature to a system at higher temperature.
- BThe mass of a system is altered when it is heated or cooled.
- CFor any exchange of heat, the heat gained by the cold system is greater than the heat lost by the hot system.
- DHeat gained = Heat lost.
- AK = (C + 32) × 5/9
- BK = C - 273
- CK = C + 273
- DK = (C × 9/5) + 32
- ATemperature
- BPressure
- CVolume
- DDensity
- ATemperature measured in relation to absolute zero
- BTemperature measured in relation to room temperature
- CTemperature measured in relation to boiling point of water
- DTemperature measured in relation to melting point of ice
- AKelvin (K)
- BCelsius (°C)
- CJoule (J)
- D Watt(W)
- AConduction
- BConvection
- CRadiation
- DExpansion
- AExpansion of a solid object in all directions
- BExpansion of a solid object in only one direction
- CExpansion of a liquid object in all directions
- DExpansion of a gaseous object in all directions
- AThe amount of heat energy required to rise the temperature of 1 gram of water through 1°C.
- BThe amount of heat energy required to rise the temperature of 1 kilogram of water through 1°C.
- CThe amount of heat energy required to boil 1 kilogram of water.
- DThe amount of heat energy required to freeze 1 kilogram of water.
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Thermal Physics - Quiz
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Correct Answer:
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- A. Potential energy
- B. Kinetic energy
- C. Heat energy
- D. Electrical energy
Remarks:
Explanation:
Thermal energy is also known as 'heat energy' or simply 'heat'.
- A. Heating
- B. Cooling
- C. Convection
- D. Radiation
Remarks:
Explanation: The process in which heat energy flows from a body at a higher temperature to another object at lower temperature is known as heating.
- A. Heat always flows from a system at lower temperature to a system at higher temperature.
- B. The mass of a system is altered when it is heated or cooled.
- C. For any exchange of heat, the heat gained by the cold system is greater than the heat lost by the hot system.
- D. Heat gained = Heat lost.
Remarks:
Explanation:
For any exchange of heat, the heat gained by the cold system is equal to heat lost by the hot system. This is known as the law of conservation of energy and is represented by the equation Heat gained = Heat lost.
- A. K = (C + 32) × 5/9
- B. K = C - 273
- C. K = C + 273
- D. K = (C × 9/5) + 32
Remarks:
Explanation:
The relationship between Celsius and Kelvin temperature scales is given by the equation K = C + 273, where K is the temperature in Kelvin and C is the temperature in Celsius. This means that the temperature difference of 1°C is equal to that of 1K.
- A. Temperature
- B. Pressure
- C. Volume
- D. Density
Remarks:
Explanation:
Temperature is the property which determines whether a body is in equilibrium or not with the surroundings.
- A. Temperature measured in relation to absolute zero
- B. Temperature measured in relation to room temperature
- C. Temperature measured in relation to boiling point of water
- D. Temperature measured in relation to melting point of ice
Remarks:
Explanation:
The temperature measured in relation to absolute zero using the kelvin scale is known as absolute scale temperature.
- A. Kelvin (K)
- B. Celsius (°C)
- C. Joule (J)
- D. Watt(W)
Remarks:
Explanation:
The SI unit of heat energy absorbed or evolved is Joule (J). Heat energy is a form of energy that is transferred between two objects due to the difference in their temperatures.
- A. Conduction
- B. Convection
- C. Radiation
- D. Expansion
Remarks:
Explanation:
Convection is a process of heat transfer where heat is transferred through the movement of a fluid, such as air or water. This occurs when a heated fluid expands and rises, while a cooler fluid contracts and sinks, creating a circular motion that transfers heat.
- A. Expansion of a solid object in all directions
- B. Expansion of a solid object in only one direction
- C. Expansion of a liquid object in all directions
- D. Expansion of a gaseous object in all directions
Remarks:
Explanation:
Superficial expansion refers to the increase in area of a solid object due to heating. It occurs in all directions, unlike linear expansion which occurs only in one direction.
- A. The amount of heat energy required to rise the temperature of 1 gram of water through 1°C.
- B. The amount of heat energy required to rise the temperature of 1 kilogram of water through 1°C.
- C. The amount of heat energy required to boil 1 kilogram of water.
- D. The amount of heat energy required to freeze 1 kilogram of water.
Remarks:
Explanation:
A kilocalorie is a unit of energy defined as the amount of heat energy required to raise the temperature of 1 kilogram of water by 1 degree Celsius.