CAIE A-Level Physics AS 3.3 Linear Momentum and Its Conservation Questions
Practise conserving vector momentum in collisions, explosions and decays and distinguishing elastic from inelastic outcomes.
- Syllabus
- 2028–2030
- Course
- Physics 9702
- Level
- AS
Covered syllabus points
Question 1
What is a statement of the principle of conservation of momentum?
A
A force is equal to the rate of change of momentum of the object upon which it acts.
B
In a perfectly elastic collision, the relative momentum of the objects before impact is equal to their relative momentum after impact.
C
The momentum of an object is the product of the mass of the object and its velocity.
D
The total momentum of a system of interacting objects remains constant, providing no resultant external force acts on the system.
Question 2
A lead pellet is shot vertically upwards into a clay block that is stationary at the moment of impact, but is able to rise freely after impact.
The mass of the pellet is 5.0 g and the mass of the clay block is 95 g .
The pellet hits the block with an initial vertical velocity of . It embeds itself in the block and does not emerge.
How high above its initial position will the block rise?
A
B
5.6 m
C
10 m
D
100 m
Question 3
Which statement about a perfectly elastic collision between two objects is correct?
A
Total kinetic energy is conserved and the relative speed of approach equals the relative speed of separation.
B
Total kinetic energy is conserved but the relative speed of approach does not equal the relative speed of separation.
C
Total kinetic energy is not conserved and the relative speed of approach does not equal the relative speed of separation.
D
Total kinetic energy is not conserved but the relative speed of approach does equal the relative speed of separation.
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