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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is mechanical energy?
💡 Hint: Think about what energy forms are included.
Question 2
Easy
Write the formula for kinetic energy.
💡 Hint: What factors influence motion?
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 formula for mechanical energy?
- A) ME = KE - PE
- B) ME = KE + PE
- C) ME = KE x PE
💡 Hint: Recall our formula for mechanical energy.
Question 2
True or False: Mechanical energy can be created or destroyed.
- True
- False
💡 Hint: Think about the laws of energy conservation.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A pendulum has a mass of 3 kg and is raised to a height of 5 m. Calculate its potential energy at that height. As it swings down, what will be the speed at the lowest point?
💡 Hint: Use energy conservation and rearrange the KE formula.
Question 2
A 2 kg ball is thrown upwards with a velocity of 15 m/s. Calculate its maximum height. Then, find the potential energy at that height and how it compares with the initial kinetic energy.
💡 Hint: Set KE equal to PE at maximum height to find height.
Challenge and get performance evaluation