# Unit 6: Electromagnetic Fields

Urban and Civil

Nov 16, 2013 (7 years and 8 months ago)

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Unit 6: Electromagnetic Fields

Topic#

Concepts Discussed

Details

Text Section

Homework (tentatively)

1

Electric Charge and Structure of Matter

7.1, p318
-
325

P324 #2,3

P325 #5,6,7

P326 #2
-
5,8

2

Coulomb’s Law of Electrical Force and
Gravitation (inver
se square law)

7.2, p327
-
335

P330 #1
-
6, (7 optional)
P334 #8,9

P335 #2
-
4

3

Electric Fields

Optional:

Case Study

-
347 #8,10

7.3, p337
-
347

See bottom of
page 339 for
Question #6 on
page 347.

1D Problems

Page 343 #2,3,4

1D and
2D Problems

Page 347
-
348 #2,3,5,6,
9,12,13

4

Electric Potential

Text section 7.4

Page 349
-
359

Questions on page 354 #1,2,3,4

Summarize Equations and meaning
labeling the significance of the variables
on page 358

7.4, p349
-
358

P354 #1
-
4,

P358
-
359

Practic
e #5,6

Section 7.4 Questions
#1,3,4,8

5

Millikan Experiment
q ne

and
g
balancing betweenPlates
ma r
mgr
V V
q
 
 

& Motion of Charged Particles in
Electric Fields

F=Eq, F=ma, d
y
=1/2a
y
t
2
, d
x
=v
x
t

Millikan Virtual Lab Applet

(hit options
in the millikan applet to get required
calculation data)

Electromagnetic gun crt

Applet

7.5, p360
-
363

7.6, p3
65
-
370

P362 #1
-
6

P368 #1
-
5, P371#1,5

Millikan Handout

3.04B
-
03

6

and and VIDEO

Assign,

Electromagnetism Making

8.1, p384
-
390

Text section 8.1

Page 384
-
391

Questions on page 391

#1,4,5

Connections Report (See below)

7a

Magnetic Forces acting on Moving
Charges & on Conductors

F = qvBsin

(force on a moving charge)

E =
q

V

Could find speed of an electron using E=1/2 mv
2

Text section 8.2

Page 392
-
403

Make note of:

A)

The right/left hand rule for magnetic f
orce on a
current flow of protons/electrons

B)

Into the page and out of the page "x and dot"
notation.

C)

The 2 equations involving
qvBsin

and
q

V

respectively. Which is a force equation and
which is an energy equation? What is the
significance of the
sin

fact
or? What is a
B
-
field and what are its units?

D)

the sample problem on page 395,398.

8.2, p392
-
402

P396 #2,3,6

P402
-
403 #2,4,6,7,12ab

7b

http://www.walter
-
fendt.de/ph11e/lorentzforce.htm

http://www.walter
-
fendt.de/ph11e/electricmotor.htm

8.3, p404
-
407

Text section 8.3

-
407

P405: # 1, 2, 3

P407: # 1
-
5

8

Ampere’s Law & Electromagnetic
Induction

Text section

8.4

Page 408
-
414

Make note of:

a)

what does Ampere’s Law mean in your
own words?

b)

What does each equation mean when it
is said that,

B
k
I
r
1
1

B
I
r
o
1
1
2

B
N
I
L
solenoid
o

F
I
l
B
2
2
1

8.4, p408
-
41
3

409: #1,3

411: #6,8

P413 #9
-
12

8b

Rules of Induction

The Basic Rules of Induction

a)

A changing magnetic field around a
conductor induces an electric current
in the conductor.

b)

The larger the
change
in the flux
intensity, or the
larger the number
of wi
re sections

exposed to a
changing magnetic field, the
larger
the amplitude of the induced
8.5, p415
-
419

Questions on page 418

Questions on page 419

current
.

c)

The current induced flows in a
direction that causes a magnetic field
to form, where the induced magnetic
field opposes the original magnetic
field (see pag
e 417, Figure 8, Nelson
Physics)

9

Presenting: Electromagnetism Making
Connections Report

MAKING CONNECTIONS
PRESENTATIONS

case Studies

Page 425, and 430
-
431

10

Presenting: Electromagnetism

Making
Connections Report

11

Review Day

12

Unit TEST

13

Extra Inquiry Activities

Virtual CRT LAB

Text Investigation (8.2.1)

Page 421
-
422

Inducing current in a wire by placing it in an
solenoid that gets turned on and off LAB

Text Investigation

(8.3.1)

Page 422
-
423

Students must design a Lab to
Investigate induction and Field
strength and around straight
and coiled conductors

Text Investigation (8.4.1)

Page 424