1.   A quantity with only magnitude is called a _____.
    A. resultant B. scalar
    C. matrix D. vector

  2.   The sum of two or more vectors is called _____.
    A. the magnitude B. the resultant
    C. a scalar D. the zero vector

  3.   The magnitude of is 41.3 meters and the magnitude of is 53.6 meters. If and are perpendicular, what is the magnitude of their sum?
    A. about 34.2 meters B. about 67.7 meters
    C. about 41.9 meters D. about 54.0 meters

  4.   If both the initial and terminal points of a vector are at the origin, the vector is __________.
    A. linearly independent B. the zero vector
    C. negative D. positive

  5.   If a vector has its initial point at the origin, it ________.
    A. is in standard position B. has a magnitude of zero
    C. has no direction D. is a scalar