Question detail
If 1500 J of energy is used to heat 0.5 kg of a substance with a specific heat capacity of 3000 J/kg°C, what is the temperature change (Temperature changes in a system and specific heat capacity) (Temperature changes in a system and specific heat capacity; definition focus: Calculate mass when thermal energy change, specific heat capacity and temperature change are known) (Temperature changes in a system and specific heat capacity; definition focus: Calculate mass when thermal energy change, specific heat capacity and temperature change are known)
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Internal energy and energy transfers
Question
- A. 1°C
- B. This confuses specific heat capacity with a different particle-model idea in Internal energy and energy transfers.
- C. This gives a vague particle statement without answering the definition focus.
- D. This reverses the cause and effect for Temperature changes in a system and specific heat capacity.
Answer
The correct answer is 1°C.
Explanation
Method lens: First identify the measured quantity, then match the equation or particle idea to the command word. This question asks: If 1500 J of energy is used to heat 0.5 kg of a substance with a specific heat capacity of 3000 J/kg°C, what is the temperature change (Temperature changes in a system and specific heat capacity) (Temperature changes in a system and specific heat capacity; definition focus: Calculate mass when thermal energy change, specific heat capacity and temperature change are known) (Temperature changes in a system and specific heat capacity; definition focus: Calculate mass when thermal energy change, specific heat capacity and temperature change are known). The correct response is 1°C, because density links mass and volume, so the answer must preserve which quantity is being calculated. In Temperature changes in a system and specific heat capacity, the marking point should connect directly to calculate mass when thermal energy change, specific heat capacity and temperature change are known. If the question includes values, the working must keep the appropriate unit and operation; if it is an explanation, it must name the relevant particle behaviour or energy change. This item belongs to Internal energy and energy transfers, so avoid answers that switch to a different quantity, confuse heat with temperature, or describe gas pressure without collisions when collisions are the reason. Checkpoint 308 is distinct because it uses this exact question context and the method lens rather than a generic particle-model sentence.
Common mistake
Confusing Mass and Weight
Students often confuse mass with weight, using them interchangeably in calculations related to specific heat capacity.
Remember that mass is measured in kilograms (kg) and is a measure of the amount of matter, while weight is a force measured in newtons (N) and is the gravitational pull on that mass. Always ensure you are using mass in kg when calculating specific heat capacity.
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