1. Momentum is a vector quantity. A.True B.False

2. The SI units of momentum are A. momenta. B. quanta. C. Newtons. D. Newton seconds. E. not defined.

3. Which of Newton’s Laws can be written in terms of momentum? A.0 th B.1 st C.2 nd D.3 rd E.all of the above

4. The total momentum of a system can be computed by summing the momentum of individual objects in the system. A.True B.False

5. When the total momentum of a system is constant, A.The sum of external forces must be zero. B.The sum of external forces is a nonzero constant. C.We cannot say anything about the sum of external forces.

6. Both internal and external forces can change the total momentum of a system. A.True B.False