Balance Beam Activity


The Concept:

    Use basic equation principles with the virtual Balance to find the weights of various figures. You are presented with a number of shapes and one of their weights is known. Your goal is to find the weights of the other objects by finding the relationships between the objects of various weights. This is achieved with a simulation of a balance beam to tell you how the weights relate.

Instructions:

    Put shapes on both sides of the Balance and observe which side is heavier. When you are confident in your knowledge of the weight of the shapes, write the values into the appropriate fields. When you have all the weights filled in, ask the computer to check your answer.

    Controls:
The Purpose:

The Simulation:

Run the Balance in 4 different modes:

2 Shapes
   
Standard, Weights vary randomly between 1 and 6
    Complex, Weights vary randomly between 2 and 10

3 Shapes
    Standard, Weights vary randomly between 1 and 6
    Complex, Weights vary randomly between 2 and 10

4 Shapes
    Standard, Weights vary randomly between 1 and 6
    Medium,  Weights vary randomly between 1 and 10
    Complex, Weights vary randomly between 2 and 10

Incremental: You start with 2 shapes and advance to 4 shapes
    Standard, Weights vary randomly between 1 and 6
    Medium,  Weights vary randomly between 1 and 10
    Complex, Weights vary randomly between 2 and 10

Problems?

    If you are having trouble loading the Applet, a possible solution is to update your Java Runtime Environment.
    To update your JRE, go to SUN's Java Webpage and follow the link to download Java software.

    If you are having problems using the applet, please notify Pavel Safronov.
        Please specify the applet you are using, your web browser, operating system and the particular problem experienced. Please be as detailed as possible.

The Credits:

Applet designed and coded by Pavel Safronov.
Contact at MSTE offices:
505 East Green Street, Suite 102
Champaign, IL 61820
Download the source code in txt file: Balance
    To run the source code, change the extension to .java

Please e-mail me with comments, error reports or complaints you have about the applet.