- Hold both ends of the chain- one end in each hand- so that the chain hangs freely and forms a U shape.
- When one end of the chain is released it accelerates toward the ground faster than g. To prove it, drop an object simultaneously with the chain end, and listen to hear which one strikes the ground first.
- Requires standing on ladder.
- Chain located in L02, section B3. Plastic balls in section A2.
falling
Falling Stick and Ball
- Students are surprised to find that ball falls into cup. Nice segue into rigid body kinematics.
- Instructions are taped to apparatus.
- See: Slow motion video.
- Located in L02, section B-2
Falling Slinky
- Bottom of slinky in free fall remains motionless until slinky is totally contracted.
- See: Slow motion video of Jonathan dropping slinky.
- Here’s another slow-mo video. Until fully contracted, the bottom of the slinky seemsĀ oblivious to the fact that it has been dropped.
- Slinky located in L02, section C-2 (in plastic tub with other springs, and ropes).