SPH3U Unit 5 Plan – Electricity and Magnetism
Uses -
Any electrical device, power generation, motors, wiring & circuitry…
Assessments:
Day
3
4
5
6
7
8
9
10
13
Task
Symbols & Units
Kirchhoff
Circuit Analysis (easy)
Magnetic Fields
Circuit Analysis (hard)
RHRs
Motors
Lenz
Debate
Description
K&U - Quiz
K&U - Quiz
TIPS - Quiz
MC - In class assignment
TIPS - Quiz
TIPS - Quiz
MC – In class assignment
MC – Explain demonstration
TIPS & Communication – In class
Done (√)
Mark
/ 10
/ 10
/ 10
/ 10
/ 10
/ 10
/ 10
/ 10
/ 20
Lesson
Day 1: 11.3 – 11.5 Q, I, V, R, P (Gr.9 Review)
- Definitions for: Static Electricity, Current Electricity, Charge, Current,
Voltage (Pot. Diff.), Resistance, Power, Series & Parallel Circuits
- Circuit symbols & circuit drawings
- How to measure current, voltage, and resistance
- Current flow conventions, and effects of current (p. 517 Table 1)
Assignment
p. 513
# 1, 2, 3, 5
Day 2: Gr. 9 Review continued.
- Definitions for: Static Electricity, Current Electricity, Charge, Current,
Voltage (Pot. Diff.), Resistance, Power, Series & Parallel Circuits
- Circuit symbols & circuit drawings
- How to measure current, voltage, and resistance
- Current flow conventions, and effects of current (p. 517 Table 1)
p. 513
#4
Day 3: 11.6 – 11.8 Kirchhoff & Ohm
- Kirchhoff’s current and voltage laws
- Ohm’s law
- Total resistance in series and parallel circuits
- Applications of above to mixed circuits (introduction to circuit
analysis)
p. 522 # 1, 2
Day 4: 11.9 Circuit Analysis
- Example of circuit analysis
- Read over tutorials in Section 11.9
p. 535
#1–2
Day 5: 11.9 Circuit Analysis Continued
- Extra practice with circuit analysis
p. 535
#3–4
Day 6: 12.1 & 12.2 Magnetic Fields
- Basis of magnetism
- Magnetic Field Activity
- Magnetic fields, drawing field lines (3 rules and method)
- Earth’s magnetic field
- www.explorelearning.com Magnetic Induction
-
p. 552
#3–6
p. 518
#2–6
p. 526
# 3, 4, 11, 12
p. 530 # 5
Day 7: 12.4 & 12.5 RHRs
- Oersted’s Principle
- RHR #1 (drawing conventions)
- Applications of induction (Maglev, MRI, aurora borealis, motors…)
- Ampѐre’s solenoid & RHR #2
- Factors affecting the strength of an induced magnetic field
- Applications of solenoids (read p. 561)
- Faraday’s motor principle & RHR #3
p. 556
# 1, 2, 5, 6
Day 8: 12.6 AC & DC Motors
- Read Section 12.6 and make notes and diagrams on the structure
and function of the DC motor with brushes
- Make note of how the armature DC motor is different and its
advantages
p. 571
#1–3
Day 9: Motors
- Motor Activity
Catch-up/
Review
Day 10: 13.1 & 13.2 Induction and Lenz’s Law
- http://www.youtube.com/watch?v=VPxdl1zpcC8
- Law of Electromagnetic Induction
- Factors affecting induction
- Applications of induction
- Lenz’s Law
- Examples predicting the direction of the induced current
p. 591
# 2, 3, 4
Day 11: 13.3 – 13.5 Generators and Transformers
- Alternating current
- Transformer structure and function (step-up and step-down)
- Read p. 596 – 598 on household circuits and safety systems
- Read Section 13.4 and make notes and diagrams on the structure
and function of the AC generator
p. 598 # 3, 5
Day 12: Research for Debate
- Work on research presentation.
Work on
debate.
Day 13: Debate
- Come to class ready to present.
Work on
cumlinating.
p. 562
#1–5
p. 566
# 1, 2
p. 594
#1–4
p. 604 # 4
p. 609
# 1, 2, 8
Unit 1 – 5 Formulas
vav =
∆d
∆t
aav =
v2 + ⃑⃑⃑⃑
v1
⃑ = (⃑⃑⃑⃑
∆d
) ∙ ∆t
∆v
∆t
v22 = v12 + 2a∆d
2
v2 = ⃑⃑⃑
⃑⃑⃑⃑
v1 + a⃑∆t
⃑⃑⃑⃑
∆d = ⃑⃑⃑
v1 ∆t +
1
a⃑∆t 2
2
⃑⃑⃑⃑
∆d = ⃑⃑⃑⃑
v2 ∆t −
fnet = ma
Fg = mg
W = F ∙ cosθ ∙ ∆d
% efficiency =
P=
W = ∆E
m
s2
[down]
EK =
1
2
ff = μfn
mv 2
EG = mgh
work done towards desired outcome
energy output
× 100% =
× 100%
total work done
energy input
W
∆E
=
= F ∙ vavg
∆t
∆t
Q = mc∆T = ml(v or c)
α:
g = 9.8
1
a⃑∆t 2
2
A
ZX
→
A
ZX
β− :
A −4
Z −2Y
→
0
−1e
capture:
T=
∆t
N
0 K = −273℃
E = mc 2
273 K = 0℃
+ 42He (α)
A
Z + 1Y
A
ZX
0
−1e
+
+
0
−1e
(β− )
β+ :
A
→ Z −1
Y
A
ZX
γ decay:
f=
→
A
Z − 1Y
A ∗
ZX
→
0
+1e
+
A
ZX
(β+ )
+ 00γ
N
∆t
f=
m
+
s
m
v = fλ
v = 331.4
f1 L1 = f2 L2
beat frequency = |f2 − f1 |
1
T
F
v = √ μT
0.606 s∙℃ × T
vsound + vdetector
fobs = fo (
)
vsound + vsource
Q = Ne
V=
E
Q
I=
Q
∆t
V = IR
Series: VT = V1 + V2 + V3 +. ..
e = 1.60 × 10−19 C
E
P = ∆t = IV = I 2 R =
1C = 6.24 × 1018 e
V2
R
IT = I1 = I2 = I3 =. ..
Parallel:VT = V1 = V2 = V3 =. .. IT = I1 + I2 + I3 +. ..
R T = R1 + R 2 + R 3 +. ..
1
RT
1
1
1
= R + R + R +. ..
1
2
3