Which statement BEST describes the difference between speed and velocity? A
Speed and velocity are in units of meters per second.
B.
Speed is distance divided by time, and velocity is total distance.
C.
Speed is how fast an object is moving, and velocity includes speed and direction.
D
Velocity is how fast an object is moving, and speed includes speed and direction.

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.