Temperature Changes In A System And Specific Heat Capacity (GCSE Physics)

Why is thermal energy stored during melting not associated with a temperature change?

A block of metal has mass 2.0 kg and is heated so its temperature rises from 20 °C to 50 °C. If 25 200 J of energy is supplied, what is the specific heat capacity of the metal?

During an experiment, the measured temperature drops by 20 °C in 400 s with one insulator and 20 °C in 700 s with another. What does the longer time indicate?

Which factor affects the thermal energy stored in a substance at a given temperature?

Two identical blocks at the same initial temperature are left to cool: block A is matt black and block B is shiny silver. Which statement is correct about thermal radiation?

Which change would increase the rate at which a hot metal block cools in air?

A sample of water of mass 0.5 kg is heated from 15 °C to 35 °C. Using c = 4200 J/kg °C, how much energy is required?

What is the best way to reduce random error when measuring the specific heat capacity of a block?

A heater supplies 500 W to warm 0.8 kg of oil and the temperature rises at 0.5 °C/s. What is the specific heat capacity of the oil?

Which change would increase the amount of energy required to raise a substance’s temperature by a given ?T?

A student measures a temperature of 87.4 °C on a digital thermometer and about 88 °C on a mercury scale. Which instrument has the greater resolution?