Specific heat capacity Quiz
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5 questions, one answer each
Each answer is checked as you go, with why.
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1. Which is the correct unit of specific heat capacity?
- A. J/°C
- B. J/kg °C
- C. kg °C/J
- D. J kg °C
2. How much energy is needed to raise the temperature of 0.50 kg of water by 10 °C? (c = 4200 J/kg °C)
- A. 21 000 J
- B. 2100 J
- C. 8400 J
- D. 42 000 J
3. A 60 W heater is on for 100 s. How much energy does it transfer?
- A. 0.60 J
- B. 160 J
- C. 6000 J
- D. 1.67 J
4. Why do metals heat up faster than water when given the same energy per kilogram?
- A. They have a higher specific heat capacity
- B. They have a lower mass
- C. They do not lose energy to the surroundings
- D. They have a lower specific heat capacity
5. In an experiment to find c, a student's value is higher than the data book value. Which is the most likely cause?
- A. The block was heated for too long
- B. Energy was lost to the surroundings, so the temperature rise was too small
- C. The mass of the block was too large
- D. The heater had a higher voltage than recorded