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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is kinetic energy?
💡 Hint: Think about anything that is moving.
Question 2
Easy
What is potential energy?
💡 Hint: Consider an object at height.
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 kinetic energy?
- KE = mv
- KE = 1/2 mv²
- KE = mgh
💡 Hint: Look for the term with velocity squared.
Question 2
True or False: Potential energy increases with an object’s height.
- True
- False
💡 Hint: Think about what happens when you lift something.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation