Question

identify as speed velocity
20 m/s
scalar
15 m/s south
32 m/s
vector
10 m/s in a circle

Explanation:

Speed is a scalar quantity that only has magnitude. Velocity is a vector quantity that has both magnitude and direction. A scalar has only magnitude, while a vector has magnitude and direction.

1. "20 m/s" has only magnitude, so it is speed and a scalar.
2. "scalar" is a general term for quantities like speed, not speed or velocity itself in a specific - value sense.
3. "15 m/s South" has magnitude and direction, so it is velocity.
4. "32 m/s" has only magnitude, so it is speed.
5. "vector" is a general term for quantities like velocity, not speed or velocity itself in a specific - value sense.
6. "10 m/s in a circle" has magnitude and direction (the direction is constantly changing in circular motion), so it is velocity.

Answer:

20 m/s: Speed (✓), Velocity (), scalar (✓)
scalar: Speed (), Velocity (), scalar (✓)
15 m/s South: Speed (), Velocity (✓)
32 m/s: Speed (✓), Velocity ()
vector: Speed (), Velocity (), vector (✓)
10 m/s in a circle: Speed (), Velocity (✓)