In the absence of external forces, the total momentum of a system is not altered by a collision. FALSE - To say that momentum is a conserved quantity is to say that if a system of objects can be considered to be isolated from the impact of net external forces, then the total momentum of that system is conserved. Only its acceleration would be westward.į. If the object is slowing down, its momentum is still eastward. If an object is traveling eastward, then it has an eastward momentum. FALSE - The direction of an object's momentum vector is in the direction that the object is moving. However, one should be quick to note that the object does not have to have a constant speed in order to have momentum.Į. When that inertia is in motion, the object has momentum.ĭ. FALSE - An object has momentum if it is moving. The kg m/s is the standard unit of momentum.Ĭ. FALSE - The Joule is the unit of work and energy. Momentum, like other vector quantities, is subject to the rules of vector operations.ī. Like all vector quantities, the momentum of an object is not fully described until the direction of the momentum is identified.
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