Inelastic Collision(General Knowledge > General Science ) Questions and Answers

Question 1. In an inelastic collision, which of the following does not remain conserved?
  1.    kinetic energy
  2.    Momentum
  3.    Total energy
  4.    Neither momentum nor kinetic energy
Explanation:-
Answer: Option B. -> Momentum
Question 2. Inelastic collisions are those in which internal changes in energy take place within an atom or a molecule at the expenses of total kinetic energy of the colliding particle
  1.    Attachment
  2.    Ionization
  3.    Excitation
  4.    All of these
Explanation:-
Answer: Option D. -> All of these
Question 3. Two objects, one of mass 3 kg moving with a speed of 2 m/s and the other of mass 5 kg and speed of 2 m/s, move toward each other and collide head-on
  1.    0.25 m/s
  2.    0.5 m/s
  3.    0.75 m/s
  4.    1 m/s
Explanation:-
Answer: Option B. -> 0.5 m/s
Question 4. Collisions can be ____________or ___________
  1.    fast or slow
  2.    far or near
  3.    elastic or inelastic
  4.    none of the above
Explanation:-
Answer: Option C. -> elastic or inelastic
Question 5. In a perfectly Inelastic Collision, kinetic energy
  1.    totally disappears
  2.    is increased
  3.    is decreased
  4.    is unchanged
Explanation:-
Answer: Option A. -> totally disappears
Question 6. If the total kinetic energy and momentum of a system becomes zero after collision, then the collision is
  1.    elastic
  2.    Inelastic
  3.    conserved
  4.    Not conserved
Explanation:-
Answer: Option B. -> Inelastic
Question 7. When after collision the deformation is not relived and the two bodies move together after the collision, it is called
  1.    elastic collision
  2.    perfectly inelastic collision
  3.    inelastic collision
  4.    perfectly elastic collision
Explanation:-
Answer: Option B. -> perfectly inelastic collision
Question 8. A particle of mass m moving in the x direction with speed 2v is hit by another particle of mass 2m moving in the y direction with speed v
  1.    44%
  2.    50%
  3.    56%
  4.    62%
Explanation:-
Answer: Option C. -> 56%
Question 9. Which one of the following statements is true?
  1.    Total kinetic energy is conserved in elastic collisions but momentum is not conserved in elastic collisions
  2.    Momentum is conserved in elastic collisions but not in inelastic collisions
  3.    Total kinetic energy is not conserved but momentum is conserved in inelastic collisions
  4.    Kinetic energy and momentum both are conserved in all types of collisions
Explanation:-
Answer: Option C. -> Total kinetic energy is not conserved but momentum is conserved in inelastic collisions
Question 10. The coefficient of restitution e for a perfectly inelastic collision is
  1.    1
  2.    0
  3.    -1
  4.    Infinity
Explanation:-
Answer: Option B. -> 0
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