My electroscope .pptx

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1. My electroscope By; Lannayah Rose A. Co

2. Materials: glass jar copper wire drinking straw plastic or cellophane aluminum foil with two holes cut out masking tape or electrical tape blue tack/clay dough inflatable balloon plastic dish scissors

3. The results: sorry for my cat

4. Procedure/questions: 1 use the scissors to cut a 2-inch long pieces of drinking straw. 2 punch a hole through the center of the jar lid or piece of plastic dish. 3 insert the straw in the hole use blue tack/clay dough to securely fastened the straw to the lid. 4 cut a 10 inch piece of copper wire twist the top 4 inch into a spiral or circle to create some surface area. If were trying to test the presence of an electric charge. Question: Why do you think having a larger surface area better? Why is thicker wire better? Answer: The  more area  there  is  for electrons from our object to enter the wire, the faster energy  will  flow down into our  electroscope . This  is  also why thicker wire  is better the  bigger  the radius of the wire, the  more  room electrons  have  to move. 5 insert the straight end of the wire through the straw and create a hook about 1 inch long. 6 hang two pieces of aluminum foil strips on the hook, make sure they are in contact and of the same size. Questions: why do you think we’re using two pieces of metal as opposed to one? What do you think the two pieces of metal are there to do? Answer: it  is  necessary to have  two pieces  of foil or gold leaf touching  so  that  they can  repel  each  other when the electrons flow into them, It is necessary to have  two pieces  of foil or gold leaf touching  so  that they  can  repel each other when the electrons flow into them, The electrons, which are negatively charged,  can  then travel through the copper wire of the  electroscope  down to the  pieces  of foil, which  both  become negatively charged.

5. 7 place the hooked end of the copper wire with the aluminum foil strips into the jar and twist on or tape the lid to the jar. Use electrical or masking tape to secure the lid in place. 8 give your material a static charge! Rub each of the materials (balloon, pvc pipe, socks etc. ) vigorously with your hand or a piece of wool you can rub a balloon in your hair. Question: can you explain how this helps give each other object an electric charge? Answer: Electricity (static or current) is a result of the quantity  charge . Charge is a physical property of matter, just like mass or volume. Charged objects experience a force when placed in an electric field. There are 2 types of charge, positive and negative. Charge is detected when 1 charged object exerts a force on another object. Several factors affect the amount of force between 2 charged objects, such as the amount of charge on each object and the distance between the objects. Charge is a result of subatomic particles in an atom. An atom is made up of protons and neutrons (which make up the nucleus) and electrons (which orbit the nucleus). Protons have a positive charge. Neutrons have no charge. Electrons have a negative charge. 9 give each of your object a charge bring each object near the coiled wire on you electroscope. Question: what did you observe with the movements of the two aluminum foil strips? Answer: The foil is on the left side of the conducting rod. There is no net charge on this electroscope. This is a content, but boring, electroscope. Let's mix things up a little. We rub our rubber rod, making it negative, bring it close, and When the negatively-charged rod is brought close to the electroscope, positive charges are attracted to it and negative charges are repelled away from it. Since protons do not move (they comprise the structure of all things), the negatively-charged electrons are the only charged particles within the electroscope that can move in response to this charged rod. As the rubber rod is brought near, electrons are pushed down into the electroscope, negatively charging the conducting rod and foil, leaving the top part positively charged. Note that the net charge of the electroscope is still zero. If I take the rod away at this point