Technological System Flashcards

1
Q

What is a system

A

In technology, system is a group of parts, mechanisms, devices or machines that are assembled to perform task.

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2
Q

What are the characteristics of a system

A
Elements that describe the system
Overall function
Controls
Inputs
Processes
Outputs
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3
Q

What is the overall function

A

Describes what a system needs to do

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4
Q

What is the controls

A

Manage or change what happens in a system

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5
Q

Type of controls

A

Mechanical (gears in a bike)
Electronic (keys on keyboard/buttons on remote control)
Optical (screen/automatic openers)

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6
Q

What are inputs

A

Elements that go into a system to help it function

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7
Q

Type of inputs (categories)

A

People (workers, suppliers, etc.)
Equipement (saws, trucks, trolleys, etc)
Information (knowledge, instructions, etc.)
Energy (muscle power, fuel, electricity, etc)
Material (wooden boards, fabric, nails, etc)
Capital (money, buildings, land, etc)
Time (production or management time, etc)

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8
Q

What are processes

A

A series of actions that a system must do to inputs to fulfill its role

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9
Q

What are outputs

A

Elements that leave the system once the processes are complete
Rarely has one output
Desirable = result
Undesirable = waste

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10
Q

What are components of a system

A

Components of a system are different elements (like parts, mechanisms, devices or machines) that make up a system
System —> subsystem —> parts

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11
Q

What are subsystems

A

Systems can be broken down into smaller components called subsystems. These subsystems can then be separated into parts which are indivisible

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12
Q

What is a manufacturing process sheet

A

It describes all steps needed to be followed to create every part of a technical object

Lists the equipment, materials and time needed to complete each step

One is needed to construct each part of a technical object (multiple needed for full)

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13
Q

What is a mass production

A

When something is created in very large quantities

To be able to mass produce technical objects, manufacturing process sheets are essential

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14
Q

Describe the header of a manufacturing process sheet

A

Header contains general information about the part being made

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15
Q

Techniques to make object (categories)

A
Measuring and marking
Machining and forming
Finishing
Assembling
Disassembling
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16
Q

Description of Measuring and Marking (MPS)

A

Materials need to be measured carefully/precise and the cut lines need to be marked = crucial
Each measurement marked with three points

17
Q

Description of Machining and Forming (MPS)

A
Parts are cut using tools (machining) or are folded to give them the needed shape (forming)
Protect surface (cutting mat/cardboard) and appropriate tools and techniques
18
Q

Description of Finishing (MPS)

A

Once all parts are the right size and shape, they can then be finished - smoothed

19
Q

Description of Assembly (MPS)

A

Use appropriate links
Glue, nails and soldering = permanent
Screws or bolts = non-permanent

20
Q

Description of Disassembling

A

Object may need to be partially or completely disassembled to transport or store
Disassemble object section by section
Stored in backs and labelled

21
Q

What is energy

A

Capacity to produce change

Describes an object’s ability to produce movement , release heat or emit rays

22
Q

Type of Energies (Useful)

A

Mechanical
Thermal
Luminous
Electrical

23
Q

Description of Mechanical Energy

A

Comes from the motion of an object or it’s position in space

To create motion or work because of motion

24
Q

Description of thermal energy

A

Comes from agitation of particles in matter
Through combustion (chemical process, reaction with oxygen)
Can be transformed or used directly

25
Q

Description of Luminous energy

A

Carried by light

Many sources involve transformation of energy

26
Q

Description of electrical energy

A

Associated with the movement of electricity
Can be produced from most energy sources and transformed into many other forms
Carried long distances

27
Q

Importance of energy transformation

A

Humans not always use natural energy in direct form. Usually transformed into more useful form
The conversion of one energy to another