Unit 8 MCQ.pdf - AP Physics 1 Scoring Guide Unit 8 Progress...

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AP Physics 1Scoring GuideUnit 8 Progress Check: MCQCopyright © 2017. The College Board. These materials are part of a College Board program. Use or distribution of these materials online orin print beyond your school’s participation in the program is prohibited.Page 1 of 18A scientist in a lab is able to increase the net charge of a spherical object over a specific period of time sothat the net charge may be measured each second for a time interval of 10s. The graph shows the netcharge of the object as a function of time as the scientist adds electrons to the object. Charge e refers tothe elementary unit of charge for an electron. After t=10s, the scientist no longer increases the charge of
AP Physics 1Scoring GuideUnit 8 Progress Check: MCQthe object. At a time oft=10.1s, four electrons within the object, modeled as spheres, are in thearrangement that is shown in the figure. Each electron has a magnitude of charge e and a mass me.Position P is in the direct center of the four electrons.1.Which of the following claims about the spherical object is correct when?BCD
Copyright © 2017. The College Board. These materials are part of a College Board program. Use or distribution of these materials online orin print beyond your school’s participation in the program is prohibited.Page 2 of 183.A proton is placed at position. Which of the following claims is correct about the sums of theelectric and the gravitational forces exerted on the proton due to the electrons?
2.At a time of, two electrons are separated by a distance of. Which of thefollowing predictions best describes what will happen to the separation distance after a smallamount of time?.B.C.D.
AP Physics 1Scoring GuideUnit 8 Progress Check: MCQCopyright © 2017. The College Board. These materials are part of a College Board program. Use or distribution of these materials online orin print beyond your school’s participation in the program is prohibited.Page 3 of 18AThe sum of the electric forces would be zero, and the sum of the gravitational forces would be zero.BThe sum of the electric forces would be zero, and the sum of the gravitational forces would benonzero.CThe sum of the electric forces would be nonzero, and the sum of the gravitational forces would bezero.DThe sum of the electric forces would be nonzero, and the sum of the gravitational forces would benonzero.Object X of mass 2m and charge +3q is a distance r0 away from object Y of mass 4m and charge +2q, asshown in the figure. Both charges are isolated from other objects. Charge q is considered to be thefundamental unit of charge.

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Term
Fall
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Tags
Electric charge, net charge of a spherical object

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