Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define kinetic energy.
💡 Hint: Think of anything that is moving.
Question 2
Easy
What is the formula for potential energy?
💡 Hint: Remember the variables involved: mass, gravitational acceleration, and 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 happens to potential energy as an object falls?
- Increases
- Decreases
- Remains same
💡 Hint: Think about what happens to an object as it gets closer to the ground.
Question 2
True or False: Kinetic energy is zero when an object is at rest.
- True
- False
💡 Hint: Consider when something isn't moving at all.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A rock of mass 3 kg is lifted to a height of 10 m. Calculate the potential energy gained. If the rock falls, how much kinetic energy will it have just before hitting the ground?
💡 Hint: Use the same height in both calculations.
Question 2
A bicycle of mass 12 kg is moving at a speed of 8 m/s. Calculate its kinetic energy. If the biker abruptly stops, what happens to that kinetic energy?
💡 Hint: Remember to square the speed when calculating kinetic energy.
Challenge and get performance evaluation