1. Activity 1
a. Using arrows, indicate the direction in which the ping-pong balls will move.
b. Label with “X” on the diagram, where the air is moving faster.
c. If the movement of the balls is due to a difference in the air pressure around
the ping pong balls, label with “H” on the diagram, where the air pressure is
greater and “L”, where the air pressure is lower.
d. The conclusion we can draw from this situation is; when the velocity of air
flow ___________ the air pressure _______________.