general physics 2, multiple choice questions assignment

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answer the questions as described in the file attached. the questions are attached.

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EC Quiz 5 2018 Fe = kQq/r^2 Name: ____________________ k = 9.0e9 Nm^2/C^2 e = 1.6 x 10^-19 C 1. Which of the following is true about the structure of an atom? a. Protons and electrons are in the nucleus. b. The area surrounding the nucleus is solid and filled with charge. c. The charges orbit the nucleus like planets around the sun. d. All of the above are false. 2. A Beryllium atom has 4 protons, 6 electrons and 5 neutrons. What is the atomic charge of this atom? 3. Plexiglass becomes positively charged when rubbed with silk. The plexiglass becomes positively charged because. Silk has a greater electric affinity. A. Protons travel from the plexiglass B. to the silk. C. Electrons travel from the plexiglass to the silk. D. Protons travel from the silk to the plexiglass. E. Electrons travel from the silk to the plexiglass 4. During the charging process above, suppose 8 µC of charge was obtain by the silk. How much charge does the plexiglass have? a, More than 8 µC of charge. B. 8 µC of charge. C. Less than 8 µC of charge. 5. How many electrons are equivalent to a charge of 8 µC. 6.The interaction between two like charges is called _____________. a. Attraction b. Repulsion c. No interaction d. Cannot be determined 7. The interaction between a negative charge and an neutral object is __________. a. Attraction b. Repulsion c. No interaction d. Cannot be determined 8. What occurs when a pair of opposite charges are near each other? a. Attraction b. Repulsion c. No interaction d. Cannot be determined 9. Consider a sphere with a charge of - 2 C and another sphere with a charge of +4 Coulombs. How does the force on the -2 C sphere compare with the other sphere when near each other? A. Both forces are exactly the same but in opposite directions. B. There is no force because the spheres are not touching. C. The force on the -2 C sphere is twice as great. D. The force on the + 4 C sphere is half that of the other force. 10. Two pieces of tape do not interact. What can we conclude about the tape? a. Both are charged b. Both are neutral c. At least one is charged 11. Two pieces of tape attract. What can we conclude about the tape? a. Both are charged b. Both are neutral c. At least one is charged 12. Two pieces of tape repel. What can we conclude about the tape? a. Both are charged b. Both are neutral c. At least one is charged 13. Which of the following objects would not attract a neutral object? a. Negative charge b. Positive Charge c. Neutral Objects d. All attract it. 14. Which material allows charges to flow? a. Nylon Chord B. Pop cans C. Water bottles D. None of these. E. Two of these 15. Show the distribution of charge in the following objects where gray is an insulator and white is a conductor. Draw + and - charges where appropriate in the squares below. --- 16. A piece of clear tape is charged by pulling it from the table. Which of the following will discharge (make neutral) the tape. A. Bringing it near but not touching a another piece of charged tape. B. Bringing it near but not touching a another piece of neutral tape. C. Touching the tape at only at one spot with your finger. D. None of these will discharge the entire tape. 17. When tape is pulled from the table, the tape becomes charged. The reason the tape becomes negatively charged is: a. It was charged by conduction with the table. b, It was charged by induction using a ground. c. The tape has greater electric affinity than the table d. The table has greater electric affinity than the tape. 18. A piece of taped is charged by pulling it from the table and gains 2500 electrons. Determine the charge of the tape in coulombs. - - 19. Consider the diagram above. A negatively charged and is near but not touching the conductive squares. Which of the following would be expected? A. Polarization of charge at the atomic level but no traveling charges. B. The positive charges near the sphere would move toward it. C. The negative charges near the sphere would move away from it. D. None of the above. 20. If the same negatively charged circle was brought near the pair of plastic squares instead, what would be the net charge on each square.. Left: _______ , Right: _______. In the diagram below, a negative source charge is brought near a neutral conductive-squares you then touched the right square with your finger. --21. Which of the following describes the flow of charge in your finger as described above? A. Positive charges flow away from the sphere and into the finger. B. Negative charges flow away from the sphere and into the finger. C. Positive charges flow out of the finger and into the squares. D. Negative charges flow out of the finger and into the square. 22. Which of the objects described above can be described as a ground? A. The negative source. B. The left square C. The right square. D. The finger 23. In order to keep a net charge in the left square using induction, which of the CANNOT be removed first? A. The negative source. C. The right square. D. The finger 24. A positively charged source is brought in contact with the knob of a neutral electroscope. Which of the following is true? A. The knob is negative, the leaves are positive and the whole electroscope is neutral. B. The knob is positive, the leaves are negative and the whole electroscope is neutral. C. All of the electroscope is positive. D. All of the electroscope is neutral. E. All of the electroscope is negative. 25. A negatively charged source is brought near but not touching the knob of an electroscope. Which of the following is true? A. The knob is negative, the leaves are positive and the whole electroscope is neutral. B. The knob is positive, the leaves are negative and the whole electroscope is neutral. C. All of the electroscope is positive. D. All of the electroscope is neutral. E. None of the above. 26. A positively charged source is brought near but not touching the knob of an electroscope which is then grounded. While the ground is still connected, which of the following is true? A. Protons enter from the ground. B. Protons leave through the ground. C. Electrons enter from the ground. D. Electrons leave through the ground. E. Neutrons leave the electroscope. 27. A neutral conducting sphere is on the right. A negative conducting sphere is to its left. If a ground is placed between the spheres, in which way will charge flow? A. Left. B. Right. C. Both directions. D. Charge will not flow in a ground. 28. Which of the following quantities influence the electric force in an inverse fashion (y=1/x)? A. Charge. B. Mass. C.Distance. D. The constant k 29. Which of the following is not true of electric forces? A. Measured in Newtons B. Has a direction associated with it. C. Is always greater when objects have more mass. D. May attract or repel, depending on the types of charge. 30. Which of the following is NOT true? A. Like charges push. B. Opposite charges pull. C. Decreasing charge increases force. D. Decreasing radial distance increases force. 31. A paper bit is suspended in air floating between the tape above it and the table below. Which of the following forces act on it while it is floating? Choose all that apply, A. Electric Force. B. Gravity Force (weight). C. Friction Force. D. Normal Force 32. Draw an FBD that illustrates the situation above. 33. If the electric force on the paper bit is 1/100th of a Newton, the the weight of the paper bit is: A. Exactly the same. B. Greater than the electric force. C. Less than the electric force. 34. A negatively charged sphere is hung from a string. Another charge negatively charged sphere is brought near by causing the balloon to pivot. Which of the following is true about the the hanging sphere? A. If more charge is added to the approaching sphere, it will decrease the pivot angle. B. If more charge is added to the hanging sphere it will decrease the pivot angle. C. If the distance of separation between the ball is increased it will decrease the pivot angle. D. Two of these are true. E. None of these are true. 35. What forces act on the hanging balloon? Choose all that apply. A. Electric Force. B. Gravity Force (weight). C Friction Force. 36. Draw and label the FBD that corresponds to the previous question. D. Tension Force A -4 µC charge is on the left. A +12 µC charge is on the right. The are separated by 0.25 meters. -4µC +12µC 37. Which of the following best describes the force acting on the +12 µC charge? A. It is pushed to the right. B. It is pulled to the left. C. There is no force. 38. Which of the following best describes the force on the -4µC charge? A. Exactly the same but in the opposite direction. B. Exactly the same and in the same direction C. Greater but in the same direction. D. Less but in the opposite direction. E. None of these. 39. Suppose the charge of the +12 µC charge is increased to 2 times its original charge but the other charge is tripled. How would this impact the force (F) experienced by the other charge. A. Still F. B. F/2. C. 2F. D. F/4. E. 4F 40. Suppose instead that the charge is tripled distance of separation is 1/3 the original. How would this impact the force? A. Still F. B. F/3. C. 3F. D. F/9. E. 9F Written section (5 pts each) - Show all work for credit! 1. Draw an FBD and determine the magnitude and direction of the net force acting on the +4µ charge. The distance between the left two charges is 0.60 meters whereas the right two charges are 0.20 meters apart. 2. Repeat the problem above but with the 5 µC charge placed 0.20 meters to the south of the 8 µC charge. Bonus: Without using the word force, complete the following quote from Yoda. May the _____ _____ ______ be with you!
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Explanation & Answer

Just finished (the last question needed detailed solution)Please see the attached file and let me know if you have any question :)

Explanation:
A is false because electrons are not found in the nucleus. Protons and neutrons are in the
nucleus
B is false because the area surrounding the nucleus is mostly empty space
C is false because not all charges orbit the nucleus. Only the negative charges orbit the nucleus

Charge = +4 – 6 = -2

SOLUTION:
1 electron = 1.6 x 10-19 C
Number of electrons = (8 x 10-6...


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