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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the Law of Conservation of Energy state?
💡 Hint: Think about how energy acts in different scenarios.
Question 2
Easy
Name one energy transformation that occurs in electric devices.
💡 Hint: Consider common appliances you use.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the Law of Conservation of Energy state?
- Energy can be created.
- Energy can be destroyed.
- Energy can be transformed.
💡 Hint: Consider how energy behaves in various devices.
Question 2
True or False: Energy-efficient devices waste more energy.
- True
- False
💡 Hint: Think about the purpose of these devices.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a 100W light bulb is used for 5 hours, how much energy does it consume in kWh, and what would be the cost at a rate of $0.12 per kWh?
💡 Hint: Convert Watts to kilowatts before doing the calculations.
Question 2
Describe how the use of renewable energy can impact energy conservation in your community, providing examples.
💡 Hint: Consider existing projects or initiatives in your locality.
Challenge and get performance evaluation