NEWTON’S FIRST LAW GEL

Demo Number	127
Location	Shelf 17
Description	Very easy demonstration of Newton’s First Law.
Related Demos
Tips	Demonstrates how to really get the ketchup out of the bottle. Turn it over and whack the bottom (which is now on top). This is the usual way people try to get the ketchup out but by the 1st law, all it does is push the bottle into the ketchup. Now try it by whacking the top of the bottle (now at the bottom). This moves the bottle suddenly away from the ketchup, moving the ketchup down, relative to the bottle. (The green stuff is Solarcaine.) Not especially visible to a large class. Takes only a minute or two of lecture time.

Colorado State University