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This educational resource explores the nature of momentum as a vector quantity, its units (Newton-seconds), and its role in Newton’s Laws of Motion. It discusses the principle that the total momentum of a system can be calculated by summing the momenta of its individual components and emphasizes the significance of external forces in maintaining constant momentum. The content aims to clarify misconceptions about momentum and provides true/false statements for interactive learning.
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Momentum is a vector quantity. • True • False
The SI units of momentum are • momenta. • quanta. • Newtons. • Newton seconds. • not defined.
Which of Newton’s Laws can be written in terms of momentum? • 0th • 1st • 2nd • 3rd • all of the above
The total momentum of a system can be computed by summing the momentum of individual objects in the system. • True • False
When the total momentum of a system is constant, • The sum of external forces must be zero. • The sum of external forces is a nonzero constant. • We cannot say anything about the sum of external forces.
Both internal and external forces can change the total momentum of a system. • True • False
