Physics Make Up Multiple Choice

what is the maximum resultant magnitude possible when adding a 3 unit vector to an 8 unit vector

11

what is the minimum resultant magnitude possible when adding a 3 unit vector to an 8 unit vector

5

A quantity that has both magnitude and direction is called a scalar.

False

A single vector can be replaced by two vectors in the X and Y directions. These X and Y vectors are called the resultant of the original vector.

False

The horizontal component of velocity for a projectile varies with time, even with no air resistance.

False

The vertical component of velocity for a projectile varies with time, even with no air resistance.

True

Wind velocity can be represented as a vector quantity.

True

A vector quantity has

magnitude and direction

The vertical component of a projectiles velocity is independent of

the vertical component of its velocity

An airplane flying into a head wind loses ground speed and an airplane flying with wind gains ground speed. If an airplane flies at right angles to the wind then the ground speed is

unchanged