Which statement best describes the motion of air particles in a sound wave? A. They move all around the wave.
B. They move in the direction opposite to that of the wave.
C. They vibrate at right angles to the wave.
D. They vibrate parallel to the wave.

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.