Calculating specific heat capacity (∆E = m c ∆θ)

12 questions

1. Which of the following is the correct unit used for temperature change?
2. Why does having thick carpets help people save money on heating bills?
3. Which of the following is the correct unit for specific heat capacity?
4. Three identical kettles are used to heat water from the same starting temperature. Kettle A contains 0.5 kg, kettle B contains 1.0 kg and kettle C contains 1.5 kg. Which statements are correct?
5. Which of the following has the largest store of thermal energy?
6. A small piece of red-hot metal is dropped into a large bucket of water. Which of the following statements are correct?
7. Match the following key words or phrases to their definition.
8. The energy required to heat an object and change its temperature is directly proportional to which of the following?
9. Water has a specific heat capacity of 4200 J/kg °C, calculate the energy required to increase the temperature of 1.5 kg of water from 30°C to 80°C.
10. A heater increases the temperature of samples of different materials by 10°C.Starting with the greatest, sort the samples in order of specific heat capacity, based on the given masses and energy.
11. A sample of a new plastic has a mass of 250 g. When provided with 6.0 kJ, its temperature increases from 20°C to 50°C. Calculate the specific heat capacity of the sample.
12. In a test, a 500 g sample of a liquid with specific heat capacity of 1500 J/kg °C is heated with 60.0 kJ of energy. The starting temperature of the sample was 5.5°C. Calculate the final temperature.

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