GCE O-Level · Physics (6091)

Specific heat capacity:练习题

5 道选择题即时批改,另有 1 道文字题附完整解题步骤,全部围绕「Specific heat capacity」。

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第 1 题
1

What is defined as the thermal energy required to change the temperature of \(1\text{ kg}\) of a material by \(1\text{ K}\)?

第 2 题
1

Substance X has a higher specific heat capacity than substance Y. If equal masses of X and Y at the same initial temperature are supplied with the same amount of thermal energy, which of the following is true?

第 3 题
1

A \(0.10\text{ kg}\) sample of water at \(80\text{ }^\circ\text{C}\) is mixed with \(0.20\text{ kg}\) of water at \(20\text{ }^\circ\text{C}\) in an insulated container. Assuming no heat is lost to the surroundings, what is the final equilibrium temperature of the mixture?

第 4 题
1

What is the definition of the specific heat capacity of a substance?

第 5 题
1

Two different liquids, X and Y, have equal mass. They are heated by two identical heaters. The picture shows how their temperatures vary with time. What can be deduced about their specific heat capacities?

第 6 题
2

Calculate the thermal energy required to increase the temperature of a copper block of mass \(0.50 \text{ kg}\) from \(20 ^\circ\text{C}\) to \(80 ^\circ\text{C}\).
(Specific heat capacity of copper = \(390 \text{ J / (kg } ^\circ\text{C)}\))

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