Read the following statements carefully and indicate true or false. 1. The momen

Question

Read the following statements carefully and indicate true or false.

1. The momentum of an isolated system is always conserved no matter what kind of force is acting inside the system.
2. If the kinetic energy of a single particle is zero, its momentum must be zero.
3. The kinetic energy is always conserved both in elastic collisions and inelastic collisions.
4. A large force always produces a larger impulse on a body than a smaller force.
5. If two particles of different masses have equal kinetic energy they also have equal momentum.
6. The linear momentum of an object is proportional to the mass of the object.
7. If the momentum of a single particle is zero, its kinetic energy may not be zero.

Explanation / Answer

1. True, By isolated sytem u mean no net external force is acting on the system.
2. True, Because Momentum = m*v & K.E = 0.5*m*v^2
3. False, Not Conserved in case of inelastic collisions.
4. False. It depends on time for which the force is acting.
5. False. They can have different momentum.
6. True.
7. False. It will be Zero.

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