1. Charge Transfer uDu
Objective: You are a packaging engineer, and you want to build a device that uses static electric charge to pick up those annoying foam peanuts. You plan to build a machine that rubs two materials together to create the charge. You must find and document the best choice of materials.

2. Charge Transfer uDu Materials:
• 4 insulating rods (clear acrylic, hollow polyvinyl chloride, white nylon and maple wood)
• 4 cloths (blue silk, gray wool, patterned cotton and polyester felt)
• Charge-O-Meter (copper pipe supported on sharp spindle — which means you’re not going to screw around with it)

3. Charge Transfer uDu Methods:
• You will rub the the rods with the cloths to charge them. The design and standardization of the technique is up to YOU.
• You will use your Charge-O-Meter to measure how much charge a rod acquires by measuring how strongly they attract each other. YOU have to figure out how to measure strength of attraction.
• YOU record your Methods in YOUR notebook.

4. Charge Transfer uDu Results:
Construct a 4 x 4 table that summarizes your results. That is, record the strength of attraction — as measured by YOU — when each rod is rubbed by each cloth. Choose the combination for your peanut picker-upper.
AMOUNT of CHARGE
Wool
Poly
Cotton
Silk
Wood
PVC
Acrylic
Nylon