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TECHNOLOGY

Grade 9

HYDRAULIC AND PNEUMATIC SYSTEMS

Module 13

TO BUILD A HYDRAULIC SYSTEM

Use the working drawing and build a model of a hydraulic system that is connected to a lever.

You need:

1 x 10 mℓ plastic syringe

1 x 20 mℓ plastic syringe

plastic tube (length as necessary)

a long nail

corrugated cardboard (Remember all the principles of reinforcing.)

a pair of scissors, glue, masking tape, adhesive tape

PROJECT:

THE TECHNOLOGICAL PROCESS

[LO 1.1, 3.2]

Use your knowledge of structures and / or electronics and / or mechanisms and integrate it with your knowledge and experience of hydraulic or pneumatic systems to solve ONE of the problems presented in the following situations. The problem must be solved in terms of a TECHNOLOGICAL PROCESS and be presented in a PORTFOLIO.

For the PRACTICAL WORK a prototype (as inexpensive as possible) must be built. This prototype must be able to function.

Use the assessment scales / matrixes to make sure that you comply with the requirements of the process.

Situation I

Your neighbourhood is plagued by blowflies. The residents of the neighbourhood have been asked in a number of newspaper reports to help combat the problem by keeping their dirt-bins tightly closed. However, it is not as easy as it seems. Stray cats that force their way into the bins and leave them open, are only part of the problem. The other great cause for concern is that germs are spread by these flies.

One of the residents came to the conclusion that he would have to design something that would make it possible for him to open the dirt-bin from a distance, and that would also warn him when the lid is open.

Situation II

Physically disadvantaged people often find it quite difficult to open the doors in cloak­rooms that have been specially provided for their use. Physically disadvantaged persons are usually only able to carry out a pushing motion using their hands, a walking-stick or the wheels of their wheel-chairs. This action must then enable them to open a door.

Situation III

Sticking stamps on an envelope can be very time-consuming and tiring when it is done on a large scale. A device that sticks the stamp and indicates that the task has been success­fully completed, could solve the problem.

Steps of the Technological Problem that have to be followed:

1. SURVEY

1.1 ANALYSIS OF DESIGN PROPOSAL

Core of the problem

WHAT shall I do?

WHO will use it?

WHEN will it be used?

WHERE will it be used?

WHY will it be used?

[LO 1.1]

1.2 DESIGN PROPOSAL

Design and manufacture … what, for whom, where, why and when.

1.3 LIMITATIONS AND SPECIFICATIONS

Limitations: Requirements that limit the choice of solutions.

Specifications: Include limitations that are determined by the learner him- / herself. This is a list of factors that determine what the end product will look like and how it will function.

2. DEVELOPMENT OF IDEAS

2.1 RESEARCH

Research has to do with the skill of collecting data, noting it, analysing it and making decisions on the basis of the processed data.

Make a list of all the information that you need to develop your ideas.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
are your images copyright or can i use them freely in education
Stephanie Reply

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Source:  OpenStax, Technology grade 9. OpenStax CNX. Sep 15, 2009 Download for free at http://cnx.org/content/col11071/1.1
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