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 mock test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define center of mass.
💡 Hint: Think about where mass is concentrated.
Question 2
Easy
What is momentum?
💡 Hint: What do objects have when they're moving?
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 center of mass?
- The average position of mass
- The heaviest part of an object
- The geometric center only
💡 Hint: Consider how mass is balanced.
Question 2
True or False: In a closed system, momentum can be lost.
- True
- False
💡 Hint: Think about how momentum works in collisions.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A car of mass 1000 kg is moving with a velocity of 20 m/s. After a collision with another car of mass 1500 kg at rest, find the final velocity of both cars assuming conservation of momentum.
💡 Hint: Use the momentum conservation equation.
Question 2
A disk rotates about its center. If the radius is doubled while keeping the mass the same, explain how this affects its moment of inertia.
💡 Hint: Consider how radius affects inertia.
Challenge and get performance evaluation