Question 1
Question detail
What happens to the thermal energy of a substance when it is heated?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Energy changes in a system, and the ways energy is stored before and after such changes
Question
- A. It decreases
- B. It remains the same
- C. It increases
- D. It evaporates
Answer
It increases
Explanation
The correct option is "It increases". It increases is right because it directly matches Energy changes in systems: Identify change in thermal energy in joules, mass in kilograms, specific heat capacity in joules per kilogram per degree Celsius and temperature change in degrees Celsius.. The other options are less suitable because they change the required Physics relationship, confuse the relevant energy store or use a distractor that does not answer the question.
Common mistake
Confusing Units of Measurement
Students often confuse joules with kilograms when identifying thermal energy changes.
Always remember that thermal energy is measured in joules, while mass is measured in kilograms. Keep the units distinct when performing calculations.
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