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What makes some collisions elastic and others inelastic?


Question 17 options:


If there is energy lost in the collision to sound, heat, etc., the collision is inelastic.



If there is no loss of kinetic energy in the collision, it is inelastic.



If the collision involves bouncing, it is elastic.



If the collision involves sticking together, it is elastic.

Verified Answer :

Answer : The The correct option is, If there is energy lost in the collision to sound, heat, etc., the collision is inelastic.


Explanation :

  • Elastic collision : It is defined as in which there is no loss of kinetic energy in the collision.
  • Inelastic collision : It is defined as in which there is a loss of kinetic energy in the collision and this energy changed to another form of energy.

If the collision involves bouncing, it is inelastic because kinetic energy is not conserved.

If the collision involves sticking together, it is inelastic because kinetic energy is not conserved, it is changes to potential energy.

Answer:


What makes some collisions elastic and others inelastic?

Selected Answer:  

If there is energy lost in the collision to sound, heat, etc., the collision is elastic.  (this was wrong)

Correct Answer:  

If there is no loss of kinetic energy in the collision, it is elastic.  

Response Feedback:  

Consider how elasticity of a collision relates to energy.

Explanation:

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