Please help with lab report discussion and conclusion. I have already completed
ID: 3280508 • Letter: P
Question
Please help with lab report discussion and conclusion. I have already completed the abstract, procedure, data and collections, but I have a hard time putting everything together and for the discussion, I only talked about what electrostatic force is and how electrons protons neutrons make up all matter and how when two different objects are rubbed together, electrons are transferred from one object to the other and one becomes negatively charged and the other positively charged.
Here are my observations
For Part 1. For steps 1-3, the charge sensor and pail were set to 0.000V or closer after holding the reset button on the sensor, so the closest it stopped was 0.002V. After scuffing shoes on the floor, then I placed my finger in the pail and went up 0.216V, then removing my finger, it went down to 0.057V. Then for steps 4-5, after placing my finger inside the pail, it dramatically rose to 3.755V, and removing my finger, it still went up to 4.325V. Finally for step 7-9, with the grounding strap on to wrist, putting my finger once again went up to 0.048V, but removing it did not change the value much and only went up to 0.056V.
For part 2, using two rods, one nylon white and one PVC black, after rubbing both together, the white rod was placed in the pail and the charge starts to go up the graph. Upon putting the black rod inside the pail without touching the pail, the charge went down the graph.
For part 3, using two charge separators, again one nylon white and one PVC black. After rubbing both of them, the white charger was placed inside the pail, where the charge goes up the graph, the rubbing it on the outside, it goes in a zigzag pattern. When placing the PVC inside the pail, it goes down, and after rubbing the outside, it does down again in a zigzag pattern.
For part 4, rubbing both white nylon charge separator and the black PVC charge separator, and setting the PVC aside and using only the white charge separator, after placing the white charge separator in the pail, it goes down, and after removing it, it goes down, then placing the white charger back in the pail with the second grounding system placed on the pail at the same time, the charge goes down.
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Part 1:
In step 2, due to scruffing your shoes, your body acquires a charge(can be positive or negative) which can be determined from putting your finger in the pail.
In step 4, you give away the excess charge from your body (electrons), by touching the ground plane. Hence in step 5 you see an increase in the reading, when you put your finger in the pail. Now, removing your finger from the pail should decrease the reading of charge in the pail.
Part 2:
In step 4, rubbing both rubbing the charge seperators, will cause one to them to be positively charged and one of them to be negatively charged.
In step 6, we will see that one seperator will be positive and one will be negative when inserted into the pail individually. When both of the seperators are inserted together, the charges should cancel each other out and we should see a reading which is approximately equal to zero (0 Coulomb).
Part 3:
When an object is touched to the pail, the charge from object will be transferred to the pail.
Hence, in step 4, once the seperator is touched to the pail, the pail will acquire the same charge as that of the seperator, and now when we remove the seperator from the pail, the graph won't fall to zero as the pail now has a charge and will show the the value of the charge acquired by the pail.
Part 4:
in step 5, when we insert the seperator in the pail and ground it, the charge from the pail will move through the wire connected to the ground (or vice-versa depinding on the charge of the seperator disk), thereby acquiring a charge which is opposite to that of the seperator (Since like charges repel). After disconnecting the wire connected to the ground, we remove the seperator, we see that the pail has accquired a charge which is opposite to that of the seperator(as seen in the graph). When we insert, the same seperator again in the pail, the charge goes to zero in the graph.