Post-UTME Physics 2011 Objective — Question 2
Question 2 of 16 from the Post-UTME Screening (Post-UTME) Physics 2011 Objective paper, with the correct answer and a full explanation.
Advertisement
Why are collisions between gas molecules said to be elastic?
- A. No loss of energy after collisionCorrect
- B. molecules move a part in straight lines after collision
- C. total momentum decreases after collision
- D. total momentum increases after collision
Explanation
An elastic collision is one in which total kinetic energy (and momentum) is conserved, i.e. no net loss of energy.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.