{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

1 - Physics 2220 Name KEY Spring 2009 I.D Instructor(circle...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Physics 2220 Name; KEY Spring 2009 I.D.: Instructor (circle one): Matteson Weathers Quiz 1 Please select the best answers. An uncharged aluminum ball suspended by an insulating thread is moved close to a fixed, positively—charged copper ball without touching it. . Change WW1 MM bi- " F. - . ‘ »'IVLWMAQMIM 1. (2 pts.) The uncharged alummum ball W111 . g ‘ “stab MM be. i {a Cu " l a. be repelled by the charged copper ball M cu II t‘ . (19 be attracted to the charged-cupper ball 5° W Murder. 0. experience no force due to the presence of the charged copper ball 2. (2 pts.) because ‘y s _ a. the uncharged aluminum ball would have to have a net charge to experience a force. b. the charged copper ball induces a Separation of charge in the aluminum ball, with the positively-charged side of the aluminum ball closest to the copper ball. © the charged copper ball induces a separation of charge in the aluminum ball, with negatively—charged side of the aluminum ball closest to the copper ball. The aluminum ball is now momentarily brought into contact with the copper ball. 3. (2 pts.) After contact, the aluminum ball will @ be repelled by the copper ball b. be attracted to the copper ball 0. experiences no force due to the presence of the copper ball 4. (2 pts.) because a. the aluminum ball remains uncharged. ® part of the charge originally on the copper ball has transferred to the aluminum ball. c. all of the charge originally on the copper ball has transferred to the aluminum ball. Work the following problem. Show your work. 5. (4 pts.) A point—like particle carrying a charge (1 z 5.00 [4C is located at the origin. A second particle carrying an identical charge is located on the positive x—axis 10.0 cm from the first particle. Find the electric force on a third point charge, also with charge q, located on the positive y-axis 10.0 cm from the origin. 9 "z“ a , ‘z—-——&-———«}§'ifi'§{ (5’3” live mm] = 41.95fo 305% ...
View Full Document

{[ snackBarMessage ]}