Question detail
What is the main change in energy store when water reaches its boiling point in an electric kettle?
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. The thermal energy store decreases.
- B. The thermal energy store increases.
- C. The kinetic energy store increases.
- D. The gravitational potential energy store increases.
Answer
The thermal energy store increases.
Explanation
The correct option is "The thermal energy store increases.". The thermal energy store increases. is right because it directly matches Energy stores and systems: Describe energy-store changes when water is heated to boiling in an electric kettle.. 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
Misunderstanding Energy Transfer
Students often think that the energy from the kettle is only stored as thermal energy in the water and forget that energy is also transferred to the kettle itself.
Remember that energy is transferred to both the water and the kettle, and describe how the energy-store changes in both components.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.