## Activity 5.6 Physical Property Analysis

**Introduction**

What do you need to know about a product before it is built? Would you need to know its volume, surface area, or weight? Would the product weigh less if it were made of aluminum or mild steel? What about copper, brass, or cast iron? How could this information impact the product design?

How can you find the properties of a product before it is built? You can calculate them mathematically, providing you have the material specifications, but it will take time. In today’s busy, fast-paced world, engineers use solid modeling software programs to speed up the calculating process. However, the user of the software must understand what the software is doing in order to estimate the answers and to be able to recognize a possible error.

**Conclusion**

1. What do you need to know in order to perform a physical property analysis? In order to perform a physical property analysis, you need to know the object's dimensions, volume, surface area, and a type of weight and/or mass measurement.

2. Why is it important to understand the mathematics used in physical property analysis? The mathematics used in physical property analysis are important to know so you can solve basic area and volume problems that you may be presented on a daily basis in engineering and/or math.

3. Why is it important to perform a physical property analysis prior to producing a part? This is important because you need to know the dimensions of the part and all the information you gather so you can easily produce the part.

4. The clear enclosure piece and the wheels of the Automoblox are manufactured from polycarbonate. Do you think that the connector pieces are also manufactured from polycarbonate? Justify your answer.