electro1 - Lab 1 Electrostatics 1 Apparatus: Scotch tape,...

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Lab 1 Electrostatics 1 Apparatus: Scotch tape, soda can, soda bottle, brown rubbing cloth, white plastic rod, wood dowel, ring stand and clamp, foil bit on string, copper sphere or brass mass on insulating stand You have all heard about electric charge. There are two types, like charges repel, unlike charges attract, and so forth. Well, for now, please forget everything you have heard. For the rest of this lab, you are only to describe your observations and make statements that are supported by the observations and analysis of the experiments that follow. If you do not see it, do not say it! Activity 1: Remove two 10-cm long pieces of regular clear tape from a roll of tape. Curl the ends of the tape over to make handles (see the sketch at the right). Press the sticky sides of the tape to the top of the lab table and rub them so that they make good contact with the table. Then, quickly pull the strips of tape off the surface and bring the tops of the non-sticky sides of the tape near each other. Does it matter which side (sticky, non- sticky) of the strips face each other? How does the distance between the strips affect what happens? Record your observations. Activity 2: Stick a new 10-cm strip of Scotch tape with a handle to the lab table. Using a pen, label the handle of this strip with a "b" for bottom strip. Now, place a second new strip with handle on top of the first strip. Label the handle of this strip with a 't" for the top strip. Rub the strips so they make good contact with the table and with each other. Quickly pull the bottom strip off the table and then pull the two strips apart and bring their non-sticky sides near each other. Does it matter which side of the strips face each other? How does the distance between the strips affect what happens? Record your observations.
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electro1 - Lab 1 Electrostatics 1 Apparatus: Scotch tape,...

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