Awood block is sliding up a wood ramp. if the ramp is very steep, the block will reverse direction at its highest point and slide back down. if the ramp is shallow, the block will stop when it reaches its highest point.

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.