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One remaining Extra Lecture: Friday 9:30 am March 5

THE DEADLINE FOR WEEK 5's MasteringPhysics ASSIGNMENT IS EXTENDED TO WEDNESDAY FEBRUARY 17 (TONIGHT!)

THE DEADLINE FOR WEEK 6's ASSIGNMENT WILL BE MARCH 2.

THERE WILL BE AN OPTIONAL REVIEW ASSIGNMENT ON ROTATIONAL MOTION AND OSCILLATIONS PLUS ELECTRIC FORCES AND FIELDS THAT YOU CAN WORK ON OVER READING WEEK.

Midterm 1: 20% Thursday March 4 at 7:00 pm (Multiple Choice)

Midterm 2: 20% Tuesday March 23 at 7:00 pm (3 Problems)

NO CLASS THIS FRIDAY FEB 19

•  Rotational Kinematics and Dynamics (Giancoli Chapter 10, Sections 1-8, 10-12, 8 lectures) Angular position, velocity and acceleration. Rotational kinetic energy. Rotational inertia. Work and power in rotational motion. Rolling motion.

•  Simple Harmonic Oscillations (Giancoli Chapter 14, sections 1-6 and 7, 3 lectures) Rigid body rotational oscillations. Torque produced by gravity and by springs.

•  Electric Fields (Giancoli Chapter 21, 4 lectures) Charges, insulators, conductors. Coulomb's Law. Electric fields for discrete charges and for continuous charge distributions. Motion of point charges in electric fields.

•  Electric Potential (Giancoli Chapter 23, Sections 1-8, 4 lectures) Electric potential energy. Electric potential. Potential difference. Potential due to continuous charge distributions. Relation between E and V. Charged conductors.

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Chapter 21: Electric Charge and Electric Field 21-1 Static Electricity: Charge and its Conservation 21-2 Electric Charge in the Atom 21-3 Insulators and Conductors 21-4 Induced Charge: the Electroscope 21-5 Coulomb’s Law 21-6 The Electric Field 21-7 Electric Field Calculations for Continuous Charge Distributions 21-8 Electric Field Lines 21-9 Electric Fields and Conductors 21-10 Motion of a Charged Particle in an Electric Field 21-11 Electric Dipoles

Two neutral conductors are connected by a wire and a charged rod is brought near, but does not touch. The wire is taken away, and then the charged rod is removed. What are the charges on the conductors?

1) 0 0

2) + –

3) – +

4) + +

5) – –

0 0

? ?

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Two neutral conductors are connected by a wire and a charged rod is brought near, but does not touch. The wire is taken away, and then the charged rod is removed. What are the charges on the conductors?

1) 0 0

2) + –

3) – +

4) + +

5) – –

0 0

? ?

+2 +1 +1 +1 d d

1)

2)

3) the same for both

Between the red and the blue charge, which of them experiences the greater electric field due to the green charge?

+2

+1

4

+2 +1 +1 +1 d d

1)

2)

3) the same for both

Between the red and the blue charge, which of them experiences the greater electric field due to the green charge?

+2

+1

4

3 2

1 +Q

-Q +Q

5

5

4

3 2

1 +Q

-Q +Q

5

Example 1

Example 2

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