Elastic and Inelastic Collisions in One and Two Dimensions NEET Questions

Physics - Work, Energy, and Power

Elastic and Inelastic Collisions in One and Two Dimensions MCQ Questions


13.
If the final kinetic energy is less than the initial kinetic energy, the collision is:
A.
Elastic
B.
Inelastic
C.
Perfectly inelastic
D.
Momentum is lost
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ANSWER :
B. Inelastic
14.
The coefficient of restitution for a partially inelastic collision is:
A.
0 < e < 1
B.
e = 1
C.
e = 0
D.
e > 1
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ANSWER :
C. e = 0
15.
A collision where total momentum is conserved but kinetic energy is not is called:
A.
Elastic
B.
Completely inelastic
C.
Partially inelastic
D.
Elastic
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ANSWER :
B. Completely inelastic
16.
When a moving particle collides elastically with a stationary particle of equal mass, after the collision:
A.
Both masses move together
B.
They move at right angles
C.
One stops, the other moves with original velocity
D.
Both reverse direction
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ANSWER :
C. One stops, the other moves with original velocity
17.
A head-on collision between two objects results in a complete transfer of energy if:
A.
Their masses are equal
B.
Their speeds are equal
C.
One particle moves, one stops
D.
One moves faster
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ANSWER :
B. Their speeds are equal
18.
A moving neutron collides elastically with a stationary nucleus of equal mass. The neutron:
A.
Rebounds with same speed
B.
Transfers all energy to the nucleus
C.
Comes to rest
D.
Loses all energy
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ANSWER :
C. Comes to rest