Topics: Mechanics - Acceleration/Force
Equipment: Glass tube on wooden base with wheels, water.
Setup: Fill the tube partially with water. Push the apparatus.
When first pushed, the tube is accelerating, and experiences a force: F=ma. The water will move in the opposite direction. If it keeps rolling on its own (not being pushed), the water will no longer move in the opposite direction, because there is no force being applied (“constant” velocity- it’s not really constant, it will be slowing down, but slowly enough that the water will not be moving much).
Location: Shelf B-f5
Keywords: Pipe, Fluid, Glass, Roll, Push, Pull, Newton