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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define mechanical energy.
💡 Hint: Think of all types of energy combined.
Question 2
Easy
What is a conservative force? Give an example.
💡 Hint: Recall forces that act on objects without path dependence.
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 conservation of mechanical energy state?
💡 Hint: Think about energy transformations.
Question 2
Is gravitational force a conservative force?
- True
- False
💡 Hint: Recall properties of conservative forces.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A skier starts from rest at the top of a slope, 20 m high. Calculate her speed at the bottom of the slope. Assume no friction.
💡 Hint: Use the potential energy formula mgh for the height to get kinetic energy.
Question 2
A 5 kg object is dropped from a height of 10 m. What is its velocity just before it hits the ground?
💡 Hint: Apply energy conservation; potential energy converts to kinetic energy.
Challenge and get performance evaluation