Friday, October 14, 2011
Secondary Two: Survey Link
Thursday, September 15, 2011
Hope you had a good break during the September Holiday. Sorry that I am unable to be around as required to take care of my family. Seeking your UNDERSTANDING.
This is the START of term four and TODAY is the due for your Design Journal and SketchUp Model. I really hope you have completed them during the September Holiday and only required minor changes at this moment. Please remember to submit your work TODAY as any late submission will result in loss of marks/ grade.
Please create a folder, named it as S207_NAME_ADMT_PROJECT2011 and submit to the ADMT submit folder. In this folder, please drop in the files consisting the Design Journal and Models. SketchUp Models can be of different parts, examples MyBuilding, Floorplan and Layout of Special Rooms/facilities.
Have a Good Week Ahead!
Friday, May 20, 2011
Thursday, April 28, 2011
Tuesday, April 12, 2011
Date: 14th April 2011
Time: After CST lesson
Duration of Test: 45mins
Paper: 2Questions, 10 marks each. This paper is 20% of the SA marks.
*Points to note: You are required to sketch and label the mechanism used to solve the scenario in each question. Label your sketches and explain in details how the mechanism works.
1. Gears: Rotations, increasing/ decreasing speed or force.
2. Cam: How it is used to move object/ part of the object up and down. Possible for it to combine with another mechanism to create reciprocating movement?
3. linkage: Opening and closing an object. Creating specific movement by combining with other mechanism.
4. Pulley: lifting of load using compound pulley. possible to use it for transportation of load from point A to Point B?
5. Levers: Different classes of lever and its applications.
* All materials are loaded in the submit folder, Material. You can use these material or the following links for your revision.
How things work
Good luck for your coming test.
Monday, April 4, 2011
Image 2 is a correction tape where the refill is placed onto the gears and you use it by placing the tip of the correction tape on the area and pull it while applying pressure. The gears turn and help to turn the tape.
Image 3 is a scissors and is used by placing one of your fingers in each of the holes and you open and close you fingers, through the fulcrum in the middle, it cuts hat you need to.
Sunday, April 3, 2011
Saturday, March 26, 2011
Photo 1: Nail Clipper
The nail clipper is an example of class two lever and reduces the effort needed to use the nail clipper.
Photo 2: Pen Clip
The clip can be attached to another objects. It is another example of a class 2 lever.
Photo 3: Correction Tape
The gears are present in the correction tape to roll out the tape contained in it.
One problem present in the household is the shoe racks are placed below the chairs (Can be seen in photo 4). This makes in hard to get the shoes when one has to bend down to get their shoes. I suggest using a slider to pull the shoe rack out to get the shoes.
Friday, March 25, 2011
Second image: This is a picture of my correction tape. It is connected by gears so that it can work. The bigger gear enables the correction tape to be rolled out. There is a small gear between the biggest gear and the smaller gear, which enables both of those gears to rotate in the same direction. The other gear rolls the tape back in.
Third image: This is a gigantic gear system that is found in a Beijing science center.