- 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.
Thermal Physics - Quiz
- AThe hot body gets colder and the cold body gets hotter
- BThe hot body gets hotter and the cold body gets colder
- CThe hot body and the cold body remain at the same temperature
- DThe hot body and the cold body exchange volumes
- 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 gram of water.
- DThe amount of heat energy required to freeze 1 gram of water.
- AKelvin (K)
- BCelsius (°C)
- CJoule (J)
- D Watt(W)
- AThe ratio of increase in volume of a body per degree rise in temperature to its unit volume
- BThe ratio of increase in length of a body per degree rise in temperature to its unit length
- CThe ratio of increase in area of a body per degree rise in temperature to its unit area
- DThe ratio of increase in mass of a body per degree rise in temperature to its unit mass
- AA balloon expanding when heated
- BA puddle evaporating in the sun
- CA metal rod increasing in length when heated
- DWater freezing and expanding in a container
- AMass of the object
- BVolume of the object
- CNature of the object
- DShape of the object
- AThe temperature of the substance rises, the substance may change its state from solid to liquid or from liquid to gas, and the substance will contract when heated.
- BThe temperature of the substance rises, the substance may change its state from solid to liquid or from liquid to gas, and the substance will expand when heated.
- CThe temperature of the substance decreases, the substance may change its state from solid to liquid or from liquid to gas, and the substance will expand when heated.
- DThe temperature of the substance decreases, the substance may change its state from solid to liquid or from liquid to gas, and the substance will contract when heated.
- AHeat 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.
- CHeat gained by the cold system is not equal to heat lost by the hot system.
- DHeat gained by the cold system is equal to heat lost by the hot system.
- 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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- 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. The hot body gets colder and the cold body gets hotter
- B. The hot body gets hotter and the cold body gets colder
- C. The hot body and the cold body remain at the same temperature
- D. The hot body and the cold body exchange volumes
Remarks:
Explanation:
There will be a transfer of heat energy from the hot body to the cold body until a thermal equilibrium is established between them.
- 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 gram of water.
- D. The amount of heat energy required to freeze 1 gram of water.
Remarks:
Explanation:
A calorie is a unit of energy defined as the amount of heat energy required to raise the temperature of 1 gram of water by 1 degree Celsius.
- 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. The ratio of increase in volume of a body per degree rise in temperature to its unit volume
- B. The ratio of increase in length of a body per degree rise in temperature to its unit length
- C. The ratio of increase in area of a body per degree rise in temperature to its unit area
- D. The ratio of increase in mass of a body per degree rise in temperature to its unit mass
Remarks:
Explanation:
The coefficient of superficial expansion is the ratio of the increase in area of a body per degree rise in temperature to its unit area.
- A. A balloon expanding when heated
- B. A puddle evaporating in the sun
- C. A metal rod increasing in length when heated
- D. Water freezing and expanding in a container
Remarks:
Explanation:
Linear expansion refers to the increase or decrease in the length of an object due to changes in temperature. A metal rod increasing in length when heated is an example of linear expansion.
- A. Mass of the object
- B. Volume of the object
- C. Nature of the object
- D. Shape of the object
Remarks:
Explanation:
The extent of thermal expansion in solids depends on the nature of the object, i.e., the type of material, crystal structure, and bonding between atoms.
- A. The temperature of the substance rises, the substance may change its state from solid to liquid or from liquid to gas, and the substance will contract when heated.
- B. The temperature of the substance rises, the substance may change its state from solid to liquid or from liquid to gas, and the substance will expand when heated.
- C. The temperature of the substance decreases, the substance may change its state from solid to liquid or from liquid to gas, and the substance will expand when heated.
- D. The temperature of the substance decreases, the substance may change its state from solid to liquid or from liquid to gas, and the substance will contract when heated.
Remarks:
Explanation:
When heat energy is supplied to a substance, the temperature of the substance rises and it may change its state from solid to liquid or from liquid to gas. Additionally, the substance will expand when heated.
- A. Heat 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. Heat gained by the cold system is not equal to heat lost by the hot system.
- D. Heat gained by the cold system is equal to heat lost by the hot system.
Remarks:
Explanation:
For any exchange of heat, the heat gained by the cold system is equal to heat lost by the hot system.Heat gained = Heat lost.
- 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.