Question detail
A 2 kg block of metal is heated, causing its temperature to rise by 15 °C. If the specific heat capacity of the metal is 500 J/kg°C, calculate the change in thermal energy of the block.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Energy changes in a system, and the ways energy is stored before and after such changes
Question
A 2 kg block of metal is heated, causing its temperature to rise by 15 °C. If the specific heat capacity of the metal is 500 J/kg°C, calculate the change in thermal energy of the block.
Answer
15000 J
Explanation
The answer is strong because it applies the specific heat capacity formula correctly to determine the change in thermal energy. This question tests the ability to rearrange and apply the specific heat capacity equation. This answer is linked to Energy changes in systems because it applies the learning objective: Rearrange the specific heat capacity equation to calculate mass, specific heat capacity or temperature change.. It shows the Physics relationship clearly and keeps energy, power, work done and efficiency terms distinct where they appear.
Common mistake
Common Mistake in Rearranging Equations
Students often confuse the variables when rearranging the specific heat capacity equation, leading to incorrect calculations for mass, specific heat capacity, or temperature change.
To fix this, carefully identify each variable in the equation (change in thermal energy = mass x specific heat capacity x temperature change) and ensure you isolate the variable you need to calculate correctly.
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