Elastic and inelastic collisions
In any collision between objects in an isolated system, total momentum is conserved. Collisions differ in what happens to kinetic energy. In an elastic collision, kinetic energy is also conserved, and the objects bounce apart; collisions between billiard balls come close. In an inelastic collision, some kinetic energy is converted into other forms, like thermal energy, sound, or the energy of bending and denting, and in a perfectly inelastic collision the objects stick together and move as one. For example, a 2 kg cart moving at 3 m/s that hits and sticks to a stationary 1 kg cart: total momentum is 6 kg m/s before, so the joined 3 kg carts move at 2 m/s after, and some kinetic energy has been lost to other forms.
This explanation is AI-generated and can occasionally be wrong.
Vibistic AI
🔒 We never store your messages. The free built-in AI runs through Vibistic's own server, on Cloudflare's own AI infrastructure. You can also add your own API key to send messages straight from your browser to your AI provider instead.
Your notes
Test your knowledge
This test is AI-generated and can occasionally be wrong. If something looks off, use Report below.
No API key configured yet. Clicking below will ask whether to add one or take a free version of this test when one is available.
This midterm covers a lot of topics, so it's split into 2 parts. Each part includes a question from every one of its topics.
Midterm, Part 1 of 2
This test is AI-generated and can occasionally be wrong. If something looks off, use Report below.
No API key configured yet. Clicking below will ask whether to add one or take a free version of this test when one is available.
Midterm, Part 2 of 2
This test is AI-generated and can occasionally be wrong. If something looks off, use Report below.
No API key configured yet. Clicking below will ask whether to add one or take a free version of this test when one is available.
This final covers a lot of topics, so it's split into 4 parts. Each part includes a question from every one of its topics.
Final, Part 1 of 4
This test is AI-generated and can occasionally be wrong. If something looks off, use Report below.
No API key configured yet. Clicking below will ask whether to add one or take a free version of this test when one is available.
Final, Part 2 of 4
This test is AI-generated and can occasionally be wrong. If something looks off, use Report below.
No API key configured yet. Clicking below will ask whether to add one or take a free version of this test when one is available.
Final, Part 3 of 4
This test is AI-generated and can occasionally be wrong. If something looks off, use Report below.
No API key configured yet. Clicking below will ask whether to add one or take a free version of this test when one is available.
Final, Part 4 of 4
This test is AI-generated and can occasionally be wrong. If something looks off, use Report below.
No API key configured yet. Clicking below will ask whether to add one or take a free version of this test when one is available.