Question

If an object is said to be moving at 10 m/s due north. The measurement 10 m/s north would be best described as

A) a speed.
B) a velocity.
C) neither a speed or velocity.
D) either a speed or a velocity.

Answer 1

Remark

Velocity is speed that has a direction. So the answer excludes both being true. C and D are both incorrect for the same reason: you cannot have both together when a direction is given.

Speed has no direction.

Answer: B Velocity has direction and a magnitude of speed.