Videos on Design Opportunities

http://www.youtube.com/watch?v=nMXVQJ7izHM


http://www.youtube.com/watch?v=YteMYXZqyMs&feature=related


http://www.youtube.com/watch?v=HBusPr5pOaA&feature=related

For All Sec 1: Revision Practice

Take a look at the photo below,














(a) Describe a problem you can see from the photo.

(b) Write a design brief.

(c) Write three design specifications based on your design brief.

For all S1: Revision Notes 3 (Design)

Hi all,

A recap on design........

A design brief is a short statement stating the purpose on how to solve a design problem.
It starts with ..........Design and make a product ...........

E.g. Design and make a product that shows directions.

A design specifications state the requirements for your design in terms of functions, appearance, size, choice of materials, safety, etc..
It usually starts with........... The product should .........

E.g. The product should be waterproof as it is meant to be placed in an outdoor open space.

For All Sec 1: Revision Notes 2 (Structure - Types of forces)

Hi All,



You need to know the different type of forces acting on the member of a structure.

In summary,

1. A compression / compressive force will cause a member of structure to be squashed. The member that is in compression is called a strut.

2. A tension / tensile force cause a member of structure to be stretched. The member that is in tension is called a tie.

3. A torsion / torsional force cause a member to be twisted.

4. A shear force cause a member to slide/tilt to a side.

More notes on static and dynamic loads and examples of types of forces
-> Click http://www.diydoctor.org.uk/projects/forces.htm

For All Sec 1: Revision Notes 1 (Structure)

Structure terms


1. Beam - A member of a structure that is supported on two ends to resist bending.






Eg: Bench

http://upload.wikimedia.org/wikipedia/commons/7/74/Bending.png

2. Cantilever - A beam with only one end supported.







Eg: Diving Board, Wings of airplane, Ceiling fan




3. Strut - A member of structure that is subjected to compression.

4. Tie - A member of structure that is subjected to tension.

More examples on tie and strut:
Click on the link -- > http://www.technologystudent.com/struct1/strut1.htm

Prelim & O level revision Checklist

Hi Sec 4s,

Click on the link to download the Prelim and O Level study checklist..

https://docs.google.com/document/edit?id=1nCYkgdiy4L5bdaZTv7GgcFURcWhYQthPW-H6n7N5b80&hl=en&authkey=CI7T-6QH

:) All the best to prelim

For S1: What's D&T has to do with COLA?

Hi S1,

Cola is a golden child.... But what's he got to do with D&T??

Stay tuned for more to come in the subsequent lesson........

Right now.. do get to know a bit more, especially his features... Watch this short clip of him...



Enjoy!!!