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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is gravitational potential energy?
💡 Hint: Think about lifting objects: what happens to their energy?
Question 2
Easy
What formula do we use to calculate potential energy near Earth's surface?
💡 Hint: Remember the components of the formula!
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 gravitational potential energy near Earth's surface?
- W = mgh
- V = -GMm/r
- F = Gm1m2/r^2
💡 Hint: Think about how much work is done lifting an object.
Question 2
True or False: Gravitational potential energy can be negative.
- True
- False
💡 Hint: Consider the reference point for measuring potential energy.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the potential energy of a mass of 10 kg at a distance of 1.5 Earth radii from the Earth's center.
💡 Hint: Think about the impact of height on gravitational force.
Question 2
Two objects, 10 kg and 20 kg, are separated by 5 m. Calculate their gravitational potential energy.
💡 Hint: Pay attention to the negative sign in the gravitational formula.
Challenge and get performance evaluation