I assume you mean you want to use 1 or more ping pong balls to represent how an atom (i.e. atomic particle) looks. However, if you want the ball(s) to show how an atom moves, then that might require attaching a ball to a moving mechanism of some kind -- such a how planets might move around the sun.
So, for now, I guess the answer to the question depends "what do you want the atom model to illustrate -- it's size, appearance, motions, etc." Once you define that, then you can proceed to gather machines, balls, lights, back-ground drawings, string, containers, wire or whatever else you might want to help illustrate your point.
At the simplest level, you simply hold-up a ball and say "if this were an atom (i.e. atomic particle), it would be N times larger than a real atom" (and you could have someone help you calculate the value N; or ask others "Then, what is the value of N"?) BUT, you would first have to clarify whether the ball represents only the nucleus of the atom or if it is meant to represent the area encircled by the other particles that are perceived to circle the nucleus (the same as the planets circle the sun); and, without that added clarification, you could not properly calculate N.
Nov. 13, 2006 -- Joe Gervais (id = JoeG314) -- TT player in Saint Paul, Minnesota
[Google: Joe G TT info]
It depends on the material your using
it is too big
you can Build a factory by using a thermal sheet and color papers.......
using a n inflate round baloon
Model ants can be made using a variety of materials. Styrofoam balls can be connected with toothpicks and painted black.
Which of the following are the reason for using a model?a) A model is quicker and easier to build than the real thingb) We can use the model as prototype of the systemc) We can use a model instead of building the real thingd) We can use a model in simulations to test our ideas
to reduce cost by not having to build the real thing.
How do you build a cardboard Eiffel Tower?
A computer program that utilizes 3D graphics.
Try using stress balls. It's relatively cheap and helps build muscle around the fingers.
Using the website, there are "wooden" models already made of the C-5 Galaxy; but they are expensive. Academy Hobby's, makes a plastic kit at 1/480 scale. One could build the smaller scaled 1/480 plastic model, then, by using that model as a "model" carve a duplicate of the C-5 in the scale that you desire. Many people use photograph's to create a model of something (plane, boat, ship, tank, etc.). It would probably be far easier by using the method described above...using a plastic model; rather than a picture.
when you can get into a pokemart that sells great balls