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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: Remember the key idea that energy is constant.
Question 2
Easy
Give one example of potential energy.
💡 Hint: Think about height and position.
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 is the main idea of the Law of Conservation of Energy?
- Energy can be created
- Energy can be destroyed
- Energy can only be transformed
💡 Hint: Focus on energy changes.
Question 2
True or False: In a closed system, energy can freely enter or leave.
- True
- False
💡 Hint: Consider the definition of a closed system.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A car travels at a speed of 30 m/s and has a mass of 1,500 kg. Calculate its kinetic energy and discuss how this energy changes when it hits a hill and comes to a stop.
💡 Hint: Use the kinetic energy formula for calculations.
Question 2
An ideal closed system runs a chemical reaction that releases 200 J of energy, which is absorbed by a surrounding system. What does this imply about energy conservation in the original system?
💡 Hint: Think about how energy shifts during reactions.
Challenge and get performance evaluation