AP Physics 2012 Practice Quiz 4, Conduction & Electric Fields

Size: px
Start display at page:

Transcription

1 Name: Class: Date: ID: A AP Physics 01 Practice Quiz 4, Conduction & Electric Fields Multiple Choice Identify the choice that best completes the statement or answers the question. 1. ( points) A repelling force occurs between two charged objects when the charges are of a. unlike signs. b. like signs. c. equal magnitude. d. unequal magnitude.. ( points) Charge is most easily transferred in a. nonconductors. b. conductors. c. semiconductors. d. insulators. 3. ( points) In the diagram shown above, the circles represent small balls that have electric charges. Ball 1 has a negative charge, and ball is repelled by ball 1. Next, you see that ball repels ball 3 and that ball 3 attracts ball 4. What is the electric charge on ball 4? a. Ball 4 may have either a positive or negative charge. b. Ball 4 has a negative charge. c. Ball 4 has a positive charge. d. It is not possible to determine the charge on ball ( points) A surface charge can be produced on insulators by a. grounding. b. induction. c. polarization. d. contact. 5. ( points) Conductors can be charged by, while insulators cannot. a. grounding b. induction c. polarization d. contact 6. ( points) Which of the following is not a characteristic of electrical potential energy? a. It is a form of mechanical energy. b. It results from a single charge. c. It results from the interaction between charges. d. It is associated with a charge in an electric field. 7. ( points) Two positive point charges are initially separated by a distance of cm. If their separation is increased to 6 cm, the resultant electrical potential energy is equal to what factor multiplied by the initial electrical potential energy? a. 3 b. 9 c. 1 3 d ( points) Charge buildup between the plates of a capacitor stops when a. there is no net charge on the plates. b. unequal amounts of charge accumulate on the plates. c. the potential difference between the plates is equal to the applied potential difference. d. the charge on both plates is the same. 9. ( points) A capacitor consists of two metal plates; is stored on one plate, and is stored on the other. a. negative charge, positive charge b. potential energy, kinetic energy c. potential difference, internal resistance d. residual charge, induced charge 10. ( points) What effect will be produced on a capacitor if the separation between the plates is increased? a. It will increase the charge. b. It will decrease the charge. c. It will increase the capacitance. d. It will decrease the capacitance. 1

2 Name: ID: A 11. ( points) A 0.50 µf capacitor is connected to a 1 V battery. Use the expression PE 1 C( V) to determine how much electrical potential energy is stored in the capacitor. a J b J c J d J 1. ( points) A 1.5 µf capacitor is connected to a 9.0 V battery. Use the expression PE 1 C( V) to determine how much energy is stored in the capacitor. a J b J c J d J 13. ( points) When you flip a switch to turn on a light, the delay time before the light turns on is determined by a. the number of electron collisions per second in the wire. b. the drift speed of the electrons in the wire. c. the speed of the electric field moving in the wire. d. the resistance of the wire. 14. ( points) The energy gained by electrons as they are accelerated by an electric field is a. greater than the average loss in energy due to collisions. b. equal to the average loss in energy due to collisions. c. less than the average loss in energy due to collisions. d. not affected by the gain in energy due to collisions. 15. ( points) An attracting force occurs between two charged objects when the charges are of a. unlike signs. b. like signs. c. equal magnitude. d. unequal magnitude. 16. ( points) Electric charge is a. found only in a conductor. b. conserved. c. found only in insulators. d. not conserved. 17. ( points) If a positively charged glass rod is used to charge a metal bar by induction, the charge on the bar a. will be equal in magnitude to the charge on the glass rod. b. must be negative. c. must be positive. d. will be greater in magnitude than the charge on the glass rod. 18. ( points) Which sentence best describes electrical conductors? a. Electrical conductors have low mass density. b. Electrical conductors have high tensile strength. c. Electrical conductors have electric charges that move freely. d. Electrical conductors are poor heat conductors. 19. ( points) Which statement is the most correct regarding electric insulators? a. Charges within electric insulators do not readily move. b. Electric insulators have high tensile strength. c. Electric charges move freely in electric insulators. d. Electric insulators are good heat conductors. 0. ( points) The process of charging a conductor by bringing it near another charged object and then grounding the conductor is called a. contact charging. b. induction. c. polarization d. neutralization. 1. ( points) Both insulators and conductors can be charged by a. grounding. b. induction. c. polarization. d. contact.. ( points) Which is the most correct statement regarding the drawing of electric field lines? a. Electric field lines always connect from one charge to another. b. Electric field lines always form closed loops. c. Electric field lines can start on a charge of either polarity. d. Electric field lines never cross each other. 3. ( points) Electric field strength depends on a. charge and distance. b. charge and mass. c. Coulomb constant and mass. d. elementary charge and radius. 4. ( points) What occurs when two charges are moved closer together? a. The electric field doubles. b. Coulomb s law takes effect. c. The total charge increases. d. The force between the charges increases. 5. ( points) Resultant force on a charge is the sum of the individual forces on that charge. a. scalar b. vector c. individual d. negative

3 Name: ID: A Problem 6. (5 points) What is the electric force between an electron and a proton that are separated by a distance of m? Is the force attractive or repulsive? (e C, N m /C ) 7. (5 points) A proton (q C) moves 4 cm on a path parallel to the direction of a uniform electric field of strength 5.0 N/C. What is the change in electrical potential energy? 8. (5 points) What is the electric potential at a distance of 0.15 m from a point charge of 6.0 µc? ( N m /C ) 9. (5 points) A current of 8.0 A flows through a resistor when a potential difference of 0.0 V is applied to the resistor. What is the resistance of the resistor? 30. (5 points) A toaster is connected across a 13 V outlet and dissipates 0.95 kw in the form of electromagnetic radiation and heat. What is the resistance of the toaster? 31. (5 points) An alpha particle (charge e) is sent at high speed toward a gold nucleus. The electric force acting on the alpha particle is 91.0 N when it is m away from the gold nucleus. What is the charge on the gold nucleus, as a whole number multiple of e? (e C, N m /C ) 3. (5 points) Two point charges having charge values of.0 µc and 4.0 µc, respectively, are separated by 1.5 cm. What is the value of the mutual force between them? ( N m /C ) 33. (5 points) Charge A and charge B are. m apart. Charge A is 1.0 C, and charge B is.0 C. Charge C, which is.0 C, is located between them and is in electrostatic equilibrium. How far from charge A is charge C? 34. (5 points) The diagram above shows four charges A, B, C, and D at the corners of a square. Charges A and D, on opposite corners, have equal charge, whereas both B and C have a charge of 1.0 C. If the force on B is zero, what is the charge on A? 35. (5 points) Two equal but oppositely charged points are 1.0 m apart in a vacuum. The electric field intensity at the midpoint between the charges is N/C. What is the magnitude of each charge? ( N m /C ) 3

4 AP Physics 01 Practice Quiz 4, Conduction & Electric Fields Answer Section MULTIPLE CHOICE 1. ANS: B PTS: DIF: I OBJ: ANS: B PTS: DIF: I OBJ: ANS: C PTS: DIF: II OBJ: ANS: C PTS: DIF: I OBJ: ANS: B PTS: DIF: I OBJ: ANS: B PTS: DIF: I OBJ: ANS: C PTS: DIF: II OBJ: ANS: C PTS: DIF: II OBJ: ANS: A PTS: DIF: I OBJ: ANS: D PTS: DIF: I OBJ: ANS: D C 0.50 µf 0.50 x 10 6 F V 1 V PE electric 1 C( V) 1 ( F)(1 V) J PTS: DIF: IIIA OBJ: ANS: B C 1.5 µf F V 9.0 V PE electric 1 C( V) 1 ( F)(9.0 V) J PTS: DIF: IIIA OBJ: ANS: C PTS: DIF: II OBJ: ANS: A PTS: DIF: I OBJ: ANS: A PTS: DIF: I OBJ: ANS: B PTS: DIF: I OBJ: ANS: B PTS: DIF: II OBJ: ANS: C PTS: DIF: I OBJ: ANS: A PTS: DIF: I OBJ: ANS: B PTS: DIF: I OBJ: ANS: D PTS: DIF: I OBJ: ANS: D PTS: DIF: II OBJ: ANS: A PTS: DIF: I OBJ: ANS: D PTS: DIF: I OBJ: ANS: B PTS: DIF: I OBJ:

5 PROBLEM 6. ANS: N; attractive q e e C q p +e C r m N m /C Ê Ê q e q p ˆÊ C Ê Nm /C ˆ ˆ ˆ C r Ê ˆ m N PTS: 5 DIF: IIIA OBJ: ANS: J E 5.0 N/C q C d 4 cm m PE electric qed PE electric ( C)(5.0 N/C)( m) PE electric J PTS: 5 DIF: IIIB OBJ: 17-1.

6 8. ANS: V d 0.15 m q 6.0 µc C N m /C r d 0.15 m q Ê V r ( Nm/C ˆ C ) 0.15 m V PTS: 5 DIF: IIIB OBJ: ANS:.5 Ω I 8.0 A V 0.0 V V I R Rearrange to solve for R. R V I 0.0 V 8.0 A.5 Ω PTS: 5 DIF: IIIA OBJ: ANS: 16 Ω V 13 V P 0.95 kw Ê P 0.95 kw P ( V) R W 1 kw Rearrange to solve for R. ˆ W R ( V) P (13 V) W 1519 V W 16 Ω PTS: 5 DIF: IIIB OBJ:

7 31. ANS: 79e e C q α e C 91.0 N r m N m /C q α q Gold r Rearrange to solve for q Gold. q Gold q Gold Ê Felectric ˆr (91.0 N)( m) ( )q α ( Nm /C )( C) C C q e C 79.4 The charge on the gold nucleus must be an integer multiple of e. Integer (79.4)e 79e PTS: 5 DIF: IIIB OBJ: ANS: N C q C r 1.5 cm m N m /C Ê Ê q ˆ C Ê Nm /C ˆ Ê C ˆ ˆ r ( m) N PTS: 5 DIF: IIIB OBJ:

8 33. ANS: 0.91 m r A,B. m r C,A d r C,B. m d 1.0 C.0 C q C.0 C F C,A F C,B 0 N F C,A F C,B Ê ˆ Ê ˆ q C q C k (r C,A ) C (r C,B ) d (. m d) Ê d ˆÊ ˆ (. m d) Ê ˆ d (. m d) Ê ˆ d + q A (. m) d d 0.91 m (. m) C(. m).0 C C 0.91 m PTS: 5 DIF: IIIC OBJ:

9 34. ANS: 0.35 C r A,B r B,D r D,C r C,A q D q C C F B 0 N θ ABC θ DBC 45 Because charge B is in equilibrium and the charges are along the same line, the force exerted on charge B by charge A in the y-direction is zero, and only the force exerted on charge B by charge A in the x-direction is needed. In the x-direction, F A,B F C,B, which gives F B 0. F B F A,B + (cos θ ABC ) F C,B Because the distance between the charges is not known, any convenient value for r C,B can be substituted: r C,B 1.0 m Then, determine the relative distance between charge A and charge B. r A,B (cos θ ABC ) r C,B r A,B (0.707) (1.0 m) m Use the equation for the electric force between charges and set the two forces equal to each other. Ê ˆ F A,B (r A,B ) ; and F C,B (cos 45 ) k q C C (r C,B ) Ê ˆ q C (r A,B ) (cos 45 ) k C (r C,B ) Rearrange to solve for : Ê ˆ q C (r A,B ) (cos 45 ) (r C,B ) Substitute values and solve for. Ê ˆ Ê (0.707 m) 1.0 C (0.707) (1.0 m) (0.50 m )( 0.707) 1.0 C ˆ m 0.35 C PTS: 5 DIF: IIIC OBJ:

10 35. ANS: C q r total 1.0 m r 1 r 0.50 m E total N/C Nm /C E 1 E E total N/C N/C E 1 r 1 Rearrange to solve for. E 1 r Ê ˆ N/C 1 ( 0.50 m) C Nm /C q C PTS: 5 DIF: IIIB OBJ:

Ch 16 practice. Multiple Choice Identify the choice that best completes the statement or answers the question.

Ch 16 practice Multiple Choice Identify the choice that best completes the statement or answers the question. 1. What happens when a rubber rod is rubbed with a piece of fur, giving it a negative charge?

electric charge Multiple Choice Identify the choice that best completes the statement or answers the question.

electric charge Multiple hoice Identify the choice that best completes the statement or answers the question. 1. What happens when a rubber rod is rubbed with a piece of fur, giving it a negative charge?

Electricity Mock Exam

Name: Class: _ Date: _ ID: A Electricity Mock Exam Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.. What happens when a rubber rod is rubbed

c. They have electric charges that move freely d. Electrons are added to the rod a. charges are of unlike signs b. charges are of like signs

Physics Review Chapter 17 & 18 Name: Date: Period: 1. What sentence best characterizes electron conductors? a. They have low mass density b. They have high tensile strength c. They have electric charges

CHAPTER 15 PRE-TEST: ELECTRIC FORCE AND FIELDS

Class: Date: CHAPTER 5 PRE-TEST: ELECTRIC FORCE AND FIELDS Multiple Choice Identify the choice that best completes the statement or answers the question.. What happens when a rubber rod is rubbed with

Name: Class: Date: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

Name: Class: Date: AP REVIEW 4 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. If a positively charged glass rod is used to charge a metal

Exam 1--PHYS 102--Spring 2013

ame: Class: Date: Exam 1--PHYS 102--Spring 2013 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A metallic object holds a charge of 3.8 10 6 C. What total

Electrostatics and Electric Potential - Outline

Electrostatics and Electric Potential - Outline 1. Understand the basic properties of electric charge, including conservation of charge and that charges are quantized. 2. Differentiate between conductors

Chapter.16 / Section.1: Electric Charge. Q=Ne Total Charge=number of electrons transferred fundamental charge

Revision Sheet for the Final Exam Academic Year: 2018/2019 First Term Subject: Physics Grade: 12 Student s name:. Date: 26/11/2017 Required Material: Chapter 16: Electric Forces and Fields, Sections: (1,

Ch. 16 and 17 Review Problems

Ch. 16 and 17 Review Problems NAME 1) Is it possible for two negative charges to attract each other? A) Yes, they always attract. B) Yes, they will attract if they are close enough. C) Yes, they will attract

104 Practice Exam 1-2/21/02

104 Practice Exam 1-2/21/02 1. One mole of a substance contains 6.02 > 10 23 protons and an equal number of electrons. If the protons could somehow be separated from the electrons and placed in separate

Chapter 23. Electric Fields

Chapter 23 Electric Fields Electric Charges There are two kinds of electric charges Called positive and negative Negative charges are the type possessed by electrons Positive charges are the type possessed

Name: Class: Date: AP Physics Spring 2012 Q6 Practice. Multiple Choice Identify the choice that best completes the statement or answers the question.

ame: Class: Date: ID: A AP Physics Spring 2012 Q6 Practice Multiple Choice Identify the choice that best completes the statement or answers the question. 1. (2 points) A potential difference of 115 V across

Two point charges, A and B, lie along a line separated by a distance L. The point x is the midpoint of their separation.

Use the following to answer question 1. Two point charges, A and B, lie along a line separated by a distance L. The point x is the midpoint of their separation. 1. Which combination of charges would yield

Electric Potential Energy Chapter 16

Electric Potential Energy Chapter 16 Electric Energy and Capacitance Sections: 1, 2, 4, 6, 7, 8, 9 The electrostatic force is a conservative force It is possible to define an electrical potential energy

AP Physics C. Electric Circuits III.C

AP Physics C Electric Circuits III.C III.C.1 Current, Resistance and Power The direction of conventional current Suppose the cross-sectional area of the conductor changes. If a conductor has no current,

Physics 126 Fall 2004 Practice Exam 1. Answer will be posted about Oct. 5.

Physics 126 Fall 2004 Practice Exam 1. Answer will be posted about Oct. 5. 1. Which one of the following statements best explains why tiny bits of paper are attracted to a charged rubber rod? A) Paper

Electric charges. Basics of Electricity

Electric charges Basics of Electricity Electron has a negative charge Neutron has a no charge Proton has a positive charge But what is a charge? Electric charge, like mass, is a fundamental property of

melectron= 9.1x10-31 kg e = 1.6x10-19 C MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Exam #1, PHYS 102 Name Chapters 16, 17, & 18 8 February 2006 Constants k=9x109 Nm2/C2 e o =8.85x10-12 F/m mproton=1.673x10-27 kg melectron= 9.1x10-31 kg e = 1.6x10-19 C MULTIPLE CHOICE. Choose the one

Physics 11 Chapter 18: Electric Forces and Electric Fields

Physics 11 Chapter 18: Electric Forces and Electric Fields Yesterday is not ours to recover, but tomorrow is ours to win or lose. Lyndon B. Johnson When I am anxious it is because I am living in the future.

Exam 1--PHYS 202--Spring 2013

Name: Class: Date: Exam 1--PHYS 202--Spring 2013 Multiple Choice Identify the choice that best completes the statement or answers the question 1 A metallic object holds a charge of 38 10 6 C What total

Practice Exam 1. Necessary Constants and Equations: Electric force (Coulomb s Law): Electric field due to a point charge:

Practice Exam 1 Necessary Constants and Equations: Electric force (Coulomb s Law): Electric field due to a point charge: Electric potential due to a point charge: Electric potential energy: Capacitor energy:

CHAPTER 16,18,19 TEST REVIEW

AP PHYSICS Name: Period: Date: Points: 58 Score: IB Curve: DEVIL PHYSICS BADDEST CLASS ON CAMPUS 50 Multiple Choice 45 Single Response 5 Multi-Response Free Response 3 Short Free Response 2 Long Free Response

Physics II (PH2223) Physics for Scientists and Engineers, with Modern Physics, 4th edition, Giancoli

Physics II (PH2223) Physics for Scientists and Engineers, with Modern Physics, 4th edition, Giancoli Topics Covered Electric Charge & Electric Field Electric Potential Capacitance, Dielectric, Electric

Electric Potential Energy Conservative Force

Electric Potential Energy Conservative Force Conservative force or field is a force field in which the total mechanical energy of an isolated system is conserved. Examples, Gravitation, Electrostatic,

Physics 1520, Fall 2011 Quiz 3, Form: A

Physics 1520, Fall 2011 Quiz 3, Form: A Name: Date: Numeric answers must include units. Sketches must be labeled. All short-answer questions must include your reasoning, for full credit. A correct answer

Electric Charge and Electric Field AP Physics 4 Lecture Notes

Electric Charge and Electric Field AP Physics 4 Lecture Notes Coulomb s Law The Electric Field Field Lines Electric Fields and Conductors Coulomb s law: Coulomb s Law Force (N) F F F k r F F F r Charge

PHYSICS. Electrostatics

Electrostatics Coulomb s Law: SYNOPSIS SI unit of electric intensity is NC -1 Dimensions The electric intensity due to isolated point charge, Electric dipole moment, P = q (2a), SI unit is C m Torque on

Phys2120 Spring 2017 Practice Exam 1. Chapters Name

Name 1. Two point charges are 4 cm apart. They are moved to a new separation of 2 cm. By what factor does the resulting mutual force between them change? 2. An uncharged conductor is supported by an insulating

Name: Class: Date: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

Name: Class: _ Date: _ w9final Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. If C = 36 µf, determine the equivalent capacitance for the

is at the origin, and charge q μc be located if the net force on q

Term: 152 Saturday, April 09, 2016 Page: 1 Q1. Three point charges are arranged along the x-axis. Charge q 3.0 0 μc 1 is at the origin, and charge q 5.0 0 μc 2 is at x = 0.200 m. Where should a third charge

Physics Electrostatics

Homework Procedure: Read pages specified in Honors Physics Essentials by Dan Fullerton. Questions labeled TQ will be questions about the text you read. These TQ s can be answered in one word, one phrase,

Chapter Electric Forces and Electric Fields. Prof. Armen Kocharian

Chapter 25-26 Electric Forces and Electric Fields Prof. Armen Kocharian First Observations Greeks Observed electric and magnetic phenomena as early as 700 BC Found that amber, when rubbed, became electrified

Chapter 15. Electric Forces and Electric Fields

Chapter 15 Electric Forces and Electric Fields First Observations Greeks Observed electric and magnetic phenomena as early as 700 BC Found that amber, when rubbed, became electrified and attracted pieces

the electrical nature of matter is inherent in its atomic structure E & M atoms are made up of p+, n, and e- the nucleus has p+ and n

Electric Forces and Fields E & M the electrical nature of matter is inherent in its atomic structure atoms are made up of p+, n, and e- a.k.a Electricity and Magnetism the nucleus has p+ and n surrounding

The third charge has to be along the line joining the two charges, outside the two charges, and closer to the weaker.

Coordinator: Dr. M.F.Al-Kuhaili Thursday, uly 30, 2015 Page: 1 Q1. Two point charges q and 4q are at x = 0 and L, respectively. A third charge q is to be placed such that the net force on it is zero. What

Electrostatics Test Review Hons. All work must be shown,including givens, equations used, and units. Draw diagrams as appropriate.

Electrostatics Test Review Hons. All work must be shown,including givens, equations used, and units. Draw diagrams as appropriate. 1. If a charged rod A attracts another rod B, you can conclude that a.

Chapter 15. Electric Forces and Electric Fields

Chapter 15 Electric Forces and Electric Fields First Studies Greeks Observed electric and magnetic phenomena as early as 700 BC Found that amber, when rubbed, became electrified and attracted pieces of

EL FORCE and EL FIELD HW-PRACTICE 2016

1 EL FORCE and EL FIELD HW-PRACTICE 2016 1.A difference between electrical forces and gravitational forces is that electrical forces include a. separation distance. b. repulsive interactions. c. the inverse

Electric Force and Electric Field Practice Problems PSI AP Physics 1

Electric Force and Electric Field Practice Problems PSI AP Physics 1 Name Multiple Choice 1. A plastic rod is rubbed with a piece of wool. During the process the plastic rod acquires a negative charge

Electrostatics. Electrical properties generated by static charges. Introduction

Electrostatics Electrical properties generated by static charges Introduction First Greek discovery Found that amber, when rubbed, became electrified and attracted pieces of straw or feathers Introduction

IB-1 Physics Electrostatics Practice Questions. e +4e A. B. C. D.

1. A plastic rod is rubbed with a cloth. At the end of the process, the rod is found to be positively charged and the cloth is found to be uncharged. This involves the movement of A. positive charge from

Problem 1. What is the force between two small charged spheres that have charges of C and C and are placed 30 cm apart in air?

5. NAME: Problem 1. What is the force between two small charged spheres that have charges of 2 10 7 C and 3 10 7 C and are placed 30 cm apart in air? 2. What is the value of charge of a body that carries

Chapter 16 Electric Charge and Electric Field

Chapter 16 Electric Charge and Electric Field 16.1 Static Electricity; Electric Charge and Its Conservation Objects can be charged by rubbing 16.1 Static Electricity; Electric Charge and Its Conservation

Chapter 17 & 18. Electric Field and Electric Potential

Chapter 17 & 18 Electric Field and Electric Potential Electric Field Maxwell developed an approach to discussing fields An electric field is said to exist in the region of space around a charged object

Section 1: Electric Fields

PHY 132 Outline of Lecture Notes i Section 1: Electric Fields A property called charge is part of the basic nature of protons and electrons. Large scale objects become charged by gaining or losing electrons.

Physics 420 Fall 2004 Quiz 1 Wednesday This quiz is worth 6 points. Be sure to show your work and label your final answers.

Quiz 1 Wednesday This quiz is worth 6 points. Be sure to show your work and label your final answers. 1. A charge q 1 = +5.0 nc is located on the y-axis, 15 µm above the origin, while another charge q

1. Voltage is how much work is being done for a charge. 2. Lightning is the electric breakdown of air by weak electric fields and is a flow of energy.

Chapters 17 and 18 Practice Problems True or False 1. Voltage is how much work is being done for a charge. 2. Lightning is the electric breakdown of air by weak electric fields and is a flow of energy.

CHAPTER 1: ELECTROSTATICS

CHAPTER 1: ELECTROSTATICS PSPM II 2005/2006 NO. 2 2. A 2 μc charge lies on the straight line between a 3 μc charge and a 1 μc charge. The separation between the 3 μc and 1 μc is 4 cm. (a) Draw the position

HW Chapter 16 Q 6,8,10,18,19,21 P 1,2,3,4. Chapter 16. Part 1: Electric Forces and Electric Fields. Dr. Armen Kocharian

HW Chapter 16 Q 6,8,10,18,19,21 P 1,2,3,4 Chapter 16 Part 1: Electric Forces and Electric Fields Dr. Armen Kocharian First Observations Greeks Observed electric and magnetic phenomena as early as 700 BC

Chapter 21 Electric Charge and Electric Field

Chapter 21 Electric Charge and Electric Field Electric charge Conductors and insulators Coulomb s Law Electric Fields Phys 2435: Chap 21, Pg 1 Electric Charge There are two kinds of charge: positive (+)

Electric Field of a uniformly Charged Thin Spherical Shell

Electric Field of a uniformly Charged Thin Spherical Shell The calculation of the field outside the shell is identical to that of a point charge. The electric field inside the shell is zero. What are the

CLASS XII Write Short Note: Q.1: Q.2: Q.3: SELAQUI INTERNATIONAL SCHOOL, DEHRADUN ELECTROSTATICS SUBJECT: PHYSICS (a) A truck carrying explosive has a metal chain touching the ground. Why? (b) Electric

AP Physics Study Guide Chapter 17 Electric Potential and Energy Name. Circle the vector quantities below and underline the scalar quantities below

AP Physics Study Guide Chapter 17 Electric Potential and Energy Name Circle the vector quantities below and underline the scalar quantities below electric potential electric field electric potential energy

Objects can be charged by rubbing

Electrostatics Objects can be charged by rubbing Charge comes in two types, positive and negative; like charges repel and opposite charges attract Electric charge is conserved the arithmetic sum of the

Chapter 23. Electric Fields

Chapter 23 Electric Fields Electricity and Magnetism The laws of electricity and magnetism play a central role in the operation of many modern devices. The interatomic and intermolecular forces responsible

Test Review Electricity

Name: Date: 1. An operating television set draws 0.71 ampere of current when connected to a 120-volt outlet. Calculate the time it takes the television to consume 3.0 10 5 joules of electric energy. [Show

Physics 196 Final Test Point

Physics 196 Final Test - 120 Point Name You need to complete six 5-point problems and six 10-point problems. Cross off one 5-point problem and one 10-point problem. 1. Two small silver spheres, each with

AP Physics 1 Electrostatics Practice Problems. Multiple Choice

AP Physics 1 Electrostatics Practice Problems Multiple Choice 1. A plastic rod is rubbed with a piece of wool. During the process the plastic rod acquires a negative charge and the wool: (A) acquires an

NATIONAL QUALIFICATIONS CURRICULUM SUPPORT. Physics. Electromagnetism. Questions and Solutions. James Page [REVISED ADVANCED HIGHER]

NATIONAL QUALIFICATIONS CURRICULUM SUPPORT Physics Electromagnetism Questions and Solutions James Page [REVISED ADVANCED HIGHER] The Scottish Qualifications Authority regularly reviews the arrangements

SPH4U Sample Test - Electric & Magnetic Fields

SPH4U Sample Test - Electric & Magnetic Fields Modified True/False Indicate whether the sentence or statement is true or false. If false, change the identified word or phrase to make the sentence or statement

Section 1 Electric Charge and Force

CHAPTER OUTLINE Section 1 Electric Charge and Force Key Idea questions > What are the different kinds of electric charge? > How do materials become charged when rubbed together? > What force is responsible

A) I B) II C) III D) IV E) V

1. A square loop of wire moves with a constant speed v from a field-free region into a region of uniform B field, as shown. Which of the five graphs correctly shows the induced current i in the loop as

Chapter 16. Properties of Electric Charge. Electric Charge. The Milikan Experiment. Properties of Electric Charge, continued

Properties of Electric Charge Electric Charge There are two kinds of electric charge. like charges repel unlike charges attract Electric charge is conserved. Positively charged particles are called protons.

Cutnell/Johnson Physics

Cutnell/Johnson Physics Classroom Response System Questions Chapter 18 Electric Forces and Electric Fields Interactive Lecture Questions 18.1.1. A brass key has a net positive charge of +1.92 10 16 C.

1. A plastic rod is rubbed with a piece of wool. During the process the plastic rod acquires a negative charge and the wool

Electric Force and Electric Field PSI AP Physics 2 Multiple Choice 1. A plastic rod is rubbed with a piece of wool. During the process the plastic rod acquires a negative charge and the wool (A) acquires

Physics 12 ELECTROSTATICS

Physics 12 ELECTROSTATICS F = kq 1Q 2 r2 E = V d V = kq r E p = kq 1Q 2 r F = qe V = E p Q 1 000 000 Volts 1 000 000 Volts NAME: Block: Text References 3 rd Ed. Giancolli Pg. 416-30 4 th Ed. Giancolli

Física Básica Experimental I Cuestiones Tema VII. Electrostática. Soluciones incluidas. 1.

1. A cubical surface with no charge enclosed and with sides 2.0 m long is oriented with right and left faces perpendicular to a uniform electric field E of (1.6 10 5 N/C) î. The net electric flux E through

Phys222 W16 Exam 2: Chapters Key. Name:

Name: Please mark your answer here and in the scantron. A positively charged particle is moving in the +y-direction when it enters a region with a uniform electric field pointing in the +y-direction. Which

Forces Read Chapter 7; pages: 191-221 Objectives: - Describe how electrical charges exert forces on each other; Compare the strengths of electric and gravitational forces; Distinguish between conductors

Chapter 18 Electrostatics Electric Forces and Fields

Chapter 18 Electrostatics Electric Forces and Fields Electrical charges that does not flow through an object, but sit stationary on the surface of an object. Usually it is isolated on the surface, but

PHYSICS - CLUTCH CH 22: ELECTRIC FORCE & FIELD; GAUSS' LAW

!! www.clutchprep.com CONCEPT: ELECTRIC CHARGE e Atoms are built up of protons, neutrons and electrons p, n e ELECTRIC CHARGE is a property of matter, similar to MASS: MASS (m) ELECTRIC CHARGE (Q) - Mass

Unit 3 Lesson 1 Electric Charge and Static Electricity. Copyright Houghton Mifflin Harcourt Publishing Company

Opposites Attract What is electric charge? Electric charge is a property that leads to electromagnetic interactions between the particles that make up matter. An object can have a positive (+) charge,

Physics 2B Electricity and Magnetism. Instructor: Prof Benjamin Grinstein UCSD

Physics 2B Electricity and Magnetism Instructor: Prof Benjamin Grinstein UCSD week 1 Rank in order, from most positive to most negative, the charges q a to q e of these five systems. 1. q a = q b >

2: What is the magnitude of the electric charge of an electron? 3: What is the law of conservation of electric charge?

Chapter 18 Discussion January-03-15 8:58 PM Electric Forces and Electric Fields Reading Review 1: What is the SI unit of electric charge? 2: What is the magnitude of the electric charge of an electron?

Circuits Practice Websheet 18.1

Circuits Practice Websheet 18.1 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. How much power is being dissipated by one of the 10-Ω resistors? a. 24

Chapter 21 Electric Charge and Electric Field

Chapter 21 Electric Charge and Electric Field 21-1 Static Electricity; Electric Charge and Its Conservation Objects can be charged by rubbing 21-1 Static Electricity; Electric Charge and Its Conservation

Physics. Student Materials Advanced Higher. Tutorial Problems Electrical Phenomena HIGHER STILL. Spring 2000

Spring 2000 HIGHER STILL Physics Student Materials Advanced Higher Tutorial Problems Electrical Phenomena TUTORIAL 1 Coulomb's Inverse Square Law 1 A charge of 2.0 x 10-8 C is placed a distance of 2.0

Electrostatics. 3) positive object: lack of electrons negative object: excess of electrons. Particle Mass Electric Charge. m e = 9.

Electrostatics 1) electric charge: 2 types of electric charge: positive and negative 2) charging by friction: transfer of electrons from one object to another 3) positive object: lack of electrons negative

Chapter Assignment Solutions

Chapter 20-21 Assignment Solutions Table of Contents Page 558 #22, 24, 29, 31, 36, 37, 40, 43-48... 1 Lightning Worksheet (Transparency 20-4)... 4 Page 584 #42-46, 58-61, 66-69, 76-79, 84-86... 5 Chapter

SPH 4U: Unit 3 - Electric and Magnetic Fields

Name: Class: _ Date: _ SPH 4U: Unit 3 - Electric and Magnetic Fields Modified True/False (1 point each) Indicate whether the statement is true or false. If false, change the identified word or phrase to

ELECTROSTATICS. the study of electric charges, forces and fields Static Electricity is Stationary Electricity or Accumulation of charge

Electrostatics 1 ELECTROSTATICS the study of electric charges, forces and fields Static Electricity is Stationary Electricity or Accumulation of charge Fundamental Rule Opposites attract, Likes Repel Things

Q1. Three point charges are arranged as shown in FIGURE 1. Find the magnitude of the net electrostatic force on the point charge at the origin.

Coordinator: Saleem Rao Monday, May 01, 2017 Page: 1 Q1. Three point charges are arranged as shown in FIGURE 1. Find the magnitude of the net electrostatic force on the point charge at the origin. A) 1.38

Chapter 21. Electric Charge

Chapter 21 Electric Charge Electric Charge When an amber rod is rubbed with fur, some of the electrons on the atoms in the fur are transferred to the amber: Electric Charge: Water (H2O) molecule can be

PH 102 Exam I N N N N. 3. Which of the following is true for the electric force and not true for the gravitational force?

Name Date INSTRUCTIONS PH 102 Exam I 1. nswer all questions below. ll problems have equal weight. 2. Clearly mark the answer you choose by filling in the adjacent circle. 3. There will be no partial credit

Review. Spring Semester /21/14. Physics for Scientists & Engineers 2 1

Review Spring Semester 2014 Physics for Scientists & Engineers 2 1 Notes! Homework set 13 extended to Tuesday, 4/22! Remember to fill out SIRS form: https://sirsonline.msu.edu Physics for Scientists &

Exam 1 Solutions. The ratio of forces is 1.0, as can be seen from Coulomb s law or Newton s third law.

Prof. Eugene Dunnam Prof. Paul Avery Feb. 6, 007 Exam 1 Solutions 1. A charge Q 1 and a charge Q = 1000Q 1 are located 5 cm apart. The ratio of the electrostatic force on Q 1 to that on Q is: (1) none

PHY 131 Review Session Fall 2015 PART 1:

PHY 131 Review Session Fall 2015 PART 1: 1. Consider the electric field from a point charge. As you move farther away from the point charge, the electric field decreases at a rate of 1/r 2 with r being

Electrostatics. 4πε 2) + Q / 2 4) 4 Q

Two spheres A and B of radius a and b respectively are at the same potential The ratio of the surface charge density of A to B is: ) a / b ) b / a a / b b / a Two free protons are separated by a distance

PHYSICS - Electrostatics

PHYSICS - Electrostatics Electrostatics, or electricity at rest, involves electric charges, the forces between them, and their behavior in materials. 22.1 Electrical Forces and Charges The fundamental

PHYS 212 Final Exam (Old Material) Solutions - Practice Test

PHYS 212 Final Exam (Old Material) Solutions - Practice Test 1E If the ball is attracted to the rod, it must be made of a conductive material, otherwise it would not have been influenced by the nearby

Conceptual Physical Science 6 th Edition

Conceptual Physical Science 6 th Edition Chapter 8: STATIC AND CURRENT ELECTRICITY 1 Chapter 8: STATIC AND CURRENT ELECTRICITY Chapter 8: Read: All Homework: Four problems from the following set: 4, 6,

Phys 2B Final Exam Name:

Phys 2B Final Exam Name: Multiple Choice (3 points each) 1. Two capacitors initially uncharged are connected in series to a battery, as shown. What is the charge on the top plate of C 1? a. 81 μc b. 18

NSWRS - P Physics Multiple hoice Practice lectrostatics Solution nswer 1. y definition. Since charge is free to move around on/in a conductor, excess charges will repel each other to the outer surface

Electron Theory of Charge. Electricity. 1. Matter is made of atoms. Refers to the generation of or the possession of electric charge.

Electricity Refers to the generation of or the possession of electric charge. There are two kinds of electricity: 1. Static Electricity the electric charges are "still" or static 2. Current Electricity

Electric Charge & Force Problems - 1 v Goodman & Zavorotniy

The Atom Chapter Questions 1. Which part on an atom carries a positive charge? Which carries the negative charge? 2. How many types of electric charge are there? 3. When a neutral atom captures a free

The next two questions pertain to the situation described below. Consider a parallel plate capacitor with separation d:

PHYS 102 Exams Exam 2 PRINT (A) The next two questions pertain to the situation described below. Consider a parallel plate capacitor with separation d: It is connected to a battery with constant emf V.