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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is mechanical energy?
💡 Hint: Remember the formula ME = KE + PE.
Question 2
Easy
Which type of energy is related to an object's height?
💡 Hint: Think of an object sitting on a shelf.
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 mechanical energy consist of?
- Kinetic Energy only
- Potential Energy only
- Both Kinetic and Potential Energy
💡 Hint: Recall the formula ME = KE + PE.
Question 2
True or False: In an ideal system, the total mechanical energy can change due to external forces.
- True
- False
💡 Hint: Think about conservation principles.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A roller coaster starts at a height of 20 m with a mass of 500 kg. Calculate its potential energy at the top and its kinetic energy at the bottom, ignoring friction.
💡 Hint: Use conservation of energy principles.
Question 2
If a 0.2 kg ball is thrown upwards with an initial speed of 30 m/s, find its height when potential energy equals kinetic energy.
💡 Hint: Set the two energy equations equal to solve.
Challenge and get performance evaluation