The document discusses different types of links between parts, including whether they are permanent or removable, fixed or moveable, direct or indirect, and rigid or flexible. It provides examples for each type of link and asks the reader to identify the specific links in various examples, like between a handle and punch or between handles on a device.

1. Applied Science and TechnologyApplied Science and Technology
Cycle 2 – Secondary 4
LinkagesLinkages

2. 1. Permanent or Removable?
2. Fixed (Complete) or Moveable (Partial)?
3. Direct or Indirect?
4. Rigid or Flexible (Elastic)?
Link: connect, fasten, or put together two or more pieces:
a fastener that serves to join or connect;
(wordnet.princeton.edu/perl/webwn)

3. 1. Permanent or Removable?
Can the object be taken apart without
causing damage to the object?
No - The link is considered permanent.
Yes – The link is considered removable
A rivet A nut and bolt
Permanent Removable

4. 2. Fixed (Complete) or Moveable (Partial)?
Is movement possible between the two
parts?
No - The link is considered fixed (complete).
Yes – The link is considered moveable (partial).
Screwdriver handle and shaftScissors
Moveable Fixed

5. 3. Direct or Indirect?
Do the parts require something else to
hold them together?
No - The link is considered direct.
Yes – The link is considered indirect.
Tupperware lid and bowl
two pieces of wood glued
or screwed together.
Direct
Indirect

6. 4. Rigid or Flexible (Elastic)?
Is the fastener that links the parts
together flexible ?
No - The link is considered rigid.
Yes – The link is considered flexible.
ordinary hinges Tupper Ware lid .
Rigid Flexible

7. The types of « Links » between Parts
The “link” between the handle and the punch is:
?
permanent or removable,
fixed or moveable,
direct or indirect,
rigid or flexible,
.

8. The types of « Links » between Parts
The “link” between the handle and the punch is:
?
PERMANENT or removable,
fixed or moveable,
direct or indirect,
rigid or flexible,

9. The types of « Links » between Parts
The “link” between the handle and the punch is:
?
PERMANENT or removable,
FIXED or moveable,
direct or indirect,
rigid or flexible,
.

10. The types of « Links » between Parts
The “link” between the handle and the punch is:
?
PERMANENT or removable,
FIXED or moveable,
DIRECT or indirect,
rigid or flexible,
.

11. The types of « Links » between Parts
The “link” between the handle and the punch is:
?
PERMANENT or removable,
FIXED or moveable,
DIRECT or indirect,
RIGID or flexible,
.

12. The types of « Links » between Parts
The “link” between the bottom handle and the top handle is:
?
permanent or removable,
fixed or moveable,
direct or indirect,
rigid or flexible,
.

13. The types of « Links » between Parts
The “link” between the bottom handle and the top handle is:
?
PERMANENT or removable,
fixed or moveable,
direct or indirect,
rigid or flexible,.

14. The types of « Links » between Parts
The “link” between the bottom handle and the top handle is:
?
PERMANENT or removable,
fixed or MOVEABLE,
direct or indirect,
rigid or flexible,
.

15. The types of « Links » between Parts
The “link” between the bottom handle and the top handle is:
?
PERMANENT or removable,
fixed or MOVEABLE,
direct or INDIRECT,
rigid or flexible,
.

16. The types of « Links » between Parts
The “link” between the bottom handle and the top handle is:
?
PERMANENT or removable,
fixed or MOVEABLE,
direct or INDIRECT,
RIGID or flexible,
.

17. The types of « Links » between Parts
The “link” between the bottom handle and the receptacle is:
?
permanent or removable,
fixed or moveable,
direct or indirect,
rigid or flexible,
.

18. The types of « Links » between Parts
The “link” between the bottom handle and the receptacle is:
?
permanent or REMOVABLE,
fixed or moveable,
direct or indirect,
rigid or flexible,
.

19. The types of « Links » between Parts
The “link” between the bottom handle and the receptacle is:
?
permanent or REMOVABLE,
fixed or MOVEABLE,
direct or indirect,
rigid or flexible,
.

20. The types of « Links » between Parts
The “link” between the bottom handle and the receptacle is:
?
permanent or REMOVABLE,
fixed or MOVEABLE,
DIRECT or indirect,
rigid or flexible,
.

21. The types of « Links » between Parts
The “link” between the bottom handle and the receptacle is:
?
permanent or REMOVABLE,
fixed or MOVEABLE,
DIRECT or indirect,
rigid or FLEXIBLE,
.

22. 22
Earth & Material
Space World
Technological
World
Year 2 – Applied Path
Lithosphere
Hydrosphere
Forceand
motion
Chem
ical
Changes
Electricity
Electromagnetism
Transformation of
Energy
Manufacturing
Electrical
Engineering
M
aterials
Mechanical
Engineering
Minerals
Energyresources
Catchmentarea;
Energyresources
DisturbancesTrophic RelationshipsPrimary ProductivityMaterial and energy flowChemical RecyclingFactors that influence theDistribution of biomesEcosystems
Power supply; Conduction, insulation,
and protection (resistance and coding,
Printed circuit).
Typical Controls (unipolar, bipolar, unidirectional
Bidirectional)
Transformation of energy
(electricity and light, heat, vibration, magnetism)
Other functions (condenser, diode, transistor,
Solid state relay
C
onstraints
(deflection,shearing)
C
haracteristics
ofm
echanicalproperties
H
eattreatm
ents
Types
and
properties:
Plastics
(therm
oplastics,therm
osetting,plastics)
C
eram
ics
C
om
posites
M
odification
ofproperties
(degradation,
protection)
Adhesion and friction of parts
Linking of mechanical parts (freedom of movement)
Guiding controls
Construction and characteristics of motion,
Transmission systems (friction gears, pulleys and belt,
Gear assembly, sprocket wheels and chain,
wheel and worm gear)
Speed changes, resisting torque, engine torque
Construction and characteristics of motion:
Transformation systems (screw gear system, connecting rods
Cranks, slides, rotating slider crank mechanism,
Rack and pinion drive, cams, eccentrics)
Law of conservation of energy
Energy efficiency
Distinction between heat and energy
Electromagnetism: (forces of attraction and
Repulsion; Magnetic field of a live wire)
Magnetic field of a solenoid
Electromagnetic induction
Electricity: (Electrical charge; static electricity
Ohm’s law; Electrical circuits
Relation ship between power and
electrical energy)
Com
bustion, oxidation
Force;Typesofforces
EquilibriumoftwoforcesRelationshipbetweenconstantspeed,distanceandtime
MassandWeight
Dynamics of
Ecosystems Atmosphere
Airmass;Cycloneandanticyclone
Energyresources
Space
Solarenergyflow
Earth-M
oon
system
(Gravitationaleffect)
Living
World
Fluids
ArchimedesPrinciple
Pascal’sLaw
Bernoulli’sPrinciple
Graphical
Language:
Multiview orthogonal projection
(general drawing)
Functional dimensioning
Developments (prism, cylinder, pyramid, cone)
Standards and representations
(diagrams and symbols)
Manufacturing:
Characteristics of drilling, tapping, threading,
And bending
Measurement and Inspection:
Direct measurement (vernier calliper)
Control, shape, and position (plane
Section, angle)
Technologies: Medical,
Information, Agricultural,
Automotive