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评分标准分析 — Temperature

常见 Command Words 及得分要点​

"Define specific heat capacity"​

  • M1: energy/thermal energy per unit mass
  • A1: per unit (temperature) change / per K / per °C

"Define specific latent heat"​

  • M1: energy/thermal energy per unit mass
  • A1: (during change of state / phase change) / without change of temperature

"State examples of thermometric properties"​

  • B2 each: density of liquid, volume of gas at constant pressure, resistance of metal, e.m.f. of thermocouple

典型 MS 表达​

表达得分
"thermal energy transferred from hot to cold"B1
"regions of equal temperature are in thermal equilibrium"B1
"energy/heat per unit mass per unit temperature change"M1, A1
"temperature in Kelvin = temperature in °C + 273"B1

计算题评分要点​

  • C1: 写出公式 Q=mcΔθQ = mc\Delta\theta
  • C1: 正确代入
  • A1: 答案正确
  • 热量守恒题必须有 Qlost=QgainedQ_{\text{lost}} = Q_{\text{gained}}