2011-Industrial Arts

advertisement
rd
3 FORM
INDUSTRIAL ARTS
ELECTRICAL AND ELECTRONICS
CONTENT OUTLINE
1. INTRODUCTION TO
ELECTRICITY
2. GENERAL HEALTH
AND SAFETY
EXPECTED OUTCOME
AND SKILLS

Give the correct definition
of electricity
 Identify and explain the
different careers in
Electricity
 Outline correctly roles of
personnel in the electrical
engineering profession
SUGGESTED
ACTIVITIES

Research on the origins of
electricity and how it can
be harnessed.

Correctly define the term
safety
 Identify correctly the
different categories of
safety
1. Personal safety
2. Shop safety
3. Machine safety
4. Tools safety
 Properly identify general
electrical safety rules and
warning signs
 Demonstrate proper
safety precautions
 Demonstrate proper first
aid procedures



EVALUATION
Mounting of a display on
safety and hygiene
Research and make
presentation on safety at
the work place
Survey on safety practices
in the home, school and
community

Rating of display

Grading of research and
presentation

Evaluation of survey



3. ATOMS, ELECTRONS
AND ELECTRIC
CHARGES

Make proper accident
reports
Correctly identify the
different safety hazards
List and explain
correctly, the purpose of
safety color coding
Properly explain the
terms matter and energy
 Explain correctly the
structure of an atom
a. Valence electrons
b. Energy levels of
electrons and free
electrons
 Identify correctly the
characteristics of the
following Electric Charges
a. Ions
b. Coulomb
c. Charges in action
 Explain correctly, the
theory of static electricity

Draw and label parts of an
atom

Atoms and matter
crossword puzzle
4. ELECTRIC CIRCUITS
AND DEVICE






5. CONDUCTROS AND
INSULATORS



Correctly identify the parts
of a circuit
a. Energy source
b. Conductors
c. Control devices
d. Protective devices
e. Loads
List and explain the
various electrical symbols
Explain correctly the terms
Voltage and Current
Explain the terms direct
currents and alternating
currents
State the principles of
using direct and
alternating current
Properly explain the term
resistance
Give the correct definition
of a conductor.
Explain the formation of
conductors.
List and explain correctly,
the different types of


Mounting of a display on
charts that show the
various parts of a circuit
Research and make
presentation on the
use/purpose of the various
parts of a circuit.

Compile a list of electrical
symbols used when
applying real life
situations.

Preparation of display
board showing the
application of several
conductors and insulators.

Rating of display

Grading of research and
presentation

Evaluation of survey

Rating of display board



6. OHM’S LAW AND
POWER FOMULA








conductors.
Give the correct definition
of an insulator.
List and explain the
properties of insulators.
List and explain correctly,
the different types of
Conductors
Explain correctly, the
theory of Ohm’s Law
Demonstrate a unique
understanding of the
Ohm’s law formula
Demonstrate proper use of
the Ohm’s law formula
Explain correctly the
concept of electric power
and energy
Demonstrate and
appreciation for the power
formula
Properly use the power
formulae
Demonstrate and
appreciation for the energy
formula
Properly use the energy

Analyze the behaviour of
an object that has been
charged to determine
whether the object is made
of a conductive or a
nonconductive material.

Apply the principles of
Ohm’s Law to solve for
unknowns of resistance,
current or voltage.

Apply the use of the magic
V I R-triangle to calculate
all forms of Ohm’s law
formula

7. SERIES CIRCUIT




8.ELECTRICAL CIRCUITS IN
APPLICATION (PRACTICAL)

Identify a typical series
circuit
Explain the concept of
series resistance
Calculate series voltage
Calculate series current
Basic electrical circuit
design (series)
Analyze a series circuit
and determine the values
of the current at and
electric potential
difference across each of
the resistors in a series
circuit.
Download