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Therefore, object A will also have more kinetic energy.
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Object A has more momentum than object B.If an object does not have momentum, then it definitely does not have mechanical energy either.If an object has momentum, then it must also have mechanical energy.Which of the following are true about the relationship between momentum end energy? As such, an object with a changing speed also has a changing momentum.Ģ. TRUE - Objects with a changing speed also have a changing velocity. The direction of any vector would never enter into a size comparison. FALSE - When comparing the size of two momentum vectors, the direction is insignificant. Momentum depends upon two quantities * mass and velocity. FALSE - A less massive object would have a greater momentum owing to a velocity which is greater than that of the more massive object. TRUE - For the same speed (and thus velocity), a more massive object has a greater product of mass and velocity it therefore has more momentum. As a result, an increasing speed leads to an increasing momentum - a direct relationship. As the speed of an object increases, so does its velocity. TRUE - Momentum is calculated as the product of mass and velocity. However, the momentum of an individual object is altered as momentum is transferred between colliding objects. 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.
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Like all vector quantities, the momentum of an object is not fully described until the direction of the momentum is identified. An object with a changing speed will have a changing momentum.Ī.The forward moving object will have the greatest momentum. Two identical objects are moving in opposite directions at the same speed.A less massive object can never have more momentum than a more massive object.Two objects of different mass are moving at the same speed the more massive object will have the greatest momentum.The momentum of an object varies directly with the speed of the object.Momentum is a conserved quantity the momentum of an object is never changed.An object can be traveling eastward and slowing down its momentum is westward.An object which is moving at a constant speed has momentum.An object with mass will have momentum.The standard unit on momentum is the Joule.Which of the following statements are true about momentum? Momentum and Collisions - Home || Printable Version || Questions with LinksĪnswers to Questions: All || #1-5 || #6-36 || #37-56 || 57-72ġ. The Review Session » Momentum and Collisions » Answers Q#1-5 Momentum and Collisions Review