Practice - The Many Faces of Energy: Kinetic, Potential, Thermal, and Mechanical
Practice Questions
Test your understanding with targeted questions
What is kinetic energy?
💡 Hint: Think about anything that is moving.
What is potential energy?
💡 Hint: Consider an object at height.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for kinetic energy?
💡 Hint: Look for the term with velocity squared.
True or False: Potential energy increases with an object’s height.
💡 Hint: Think about what happens when you lift something.
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Challenge Problems
Push your limits with advanced challenges
If a 4 kg book is placed on a shelf 1.5 meters high, calculate its gravitational potential energy. If it falls off the shelf, how much kinetic energy will it have just before hitting the ground?
💡 Hint: Apply the GPE formula first, then consider energy transformation.
A bicycle and rider have a combined mass of 80 kg and are moving at 15 m/s. Calculate their kinetic energy. If they suddenly stop due to friction (assuming all energy goes to heat), what will be the kinetic energy just before stopping?
💡 Hint: Use the kinetic energy formula and think about the energy transformation involved in stopping.
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Reference links
Supplementary resources to enhance your learning experience.