Monday, March 31, 2014
Saturday, March 29, 2014
Cliq: Magnetic hangers
As the name suggests, hangers that use magnets that replace the hooks.
See the full article at:
http://shoeboxdwelling.com/2014/03/27/cliq-magnetic-hangers/
See the full article at:
http://shoeboxdwelling.com/2014/03/27/cliq-magnetic-hangers/
Wednesday, March 26, 2014
Bite Size Question 17
Electronics:
1. A thyristor is normally used in an alarm system.
Describe, with the aid of sketches, how a thyristor is used in an alarm system. [4]
1. A thyristor is normally used in an alarm system.
Describe, with the aid of sketches, how a thyristor is used in an alarm system. [4]
Bite Size Question 16
Electronics:
1. There are different types of sensors used in electronic circuits.
a) The Light Dependent Resistor (LDR) is a type of sensor. Describe how this sensor works. [2]
b) Another type of sensor is affected by heat. Name and sketch this electronic component. [2]
1. There are different types of sensors used in electronic circuits.
a) The Light Dependent Resistor (LDR) is a type of sensor. Describe how this sensor works. [2]
b) Another type of sensor is affected by heat. Name and sketch this electronic component. [2]
Bite Size Question 15
Electronics:
1. Switches are used to make or break an electronic circuit.
a) Name two different types of switches.
b) A transistor is also known as an 'automatic switch'. Explain, with sketches and annotations, how a transistor works.
1. Switches are used to make or break an electronic circuit.
a) Name two different types of switches.
b) A transistor is also known as an 'automatic switch'. Explain, with sketches and annotations, how a transistor works.
Thursday, March 20, 2014
littleBits
'LittleBits is like Lego for the Ipad generation'. See the link below to know more about littleBits and what they can do.
http://littlebits.cc/about
http://littlebits.cc/about
Sunday, March 16, 2014
Bite Size Question 14
Mechanisms:
One type of motion in mechanisms is linear motion, which is defined by motion in a straight line.
a) Identify and sketch out the other 3 types of motion. [6]
One type of motion in mechanisms is linear motion, which is defined by motion in a straight line.
a) Identify and sketch out the other 3 types of motion. [6]
Bite Size Question 13
Mechanisms:
The figure below shows a wheelbarrow.
Source: http://sweetclipart.com/wheelbarrow-line-art-1107
a) Identify the class of lever used in the figure above. [1]
b) Sketch out the wheelbarrow and mark the positions of the load (L), fulcrum (F) and effort (E) clearly using arrows. [4]
The figure below shows a wheelbarrow.
Source: http://sweetclipart.com/wheelbarrow-line-art-1107
a) Identify the class of lever used in the figure above. [1]
b) Sketch out the wheelbarrow and mark the positions of the load (L), fulcrum (F) and effort (E) clearly using arrows. [4]
Bite Size Question 12
Mechanisms:
1. A spur gear system is one of the gear systems used in machines.
a) Identify and sketch out another 2 types of gear mechanisms. [4]
1. A spur gear system is one of the gear systems used in machines.
a) Identify and sketch out another 2 types of gear mechanisms. [4]
Bite Size Question 11
Structures:
1. Structures can be be made more rigid and firm using reinforcements.
a) Identify and sketch out 2 types of reinforcement used in structures. [4]
1. Structures can be be made more rigid and firm using reinforcements.
a) Identify and sketch out 2 types of reinforcement used in structures. [4]
Bite Size Question 10
Structures:
1. The figure below shows a man on a diving board.
Source: http://vecto.rs/1024/vector-of-a-cartoon-man-hugging-a-diving-board-outlined-coloring-page-by-ron-leishman-19352.jpg
a) Redraw the diagram and mark the position of the forces acting on the diving board. [3]
b) Name the force/s experienced by the diving board. [3]
1. The figure below shows a man on a diving board.
Source: http://vecto.rs/1024/vector-of-a-cartoon-man-hugging-a-diving-board-outlined-coloring-page-by-ron-leishman-19352.jpg
a) Redraw the diagram and mark the position of the forces acting on the diving board. [3]
b) Name the force/s experienced by the diving board. [3]
Bite Size Question 9
Structures:
1. Structures can be categorised as frame and shell structures.
a) Explain the difference between a frame and a shell structure. [2]
b) Name an example of each type of structure. [2]
1. Structures can be categorised as frame and shell structures.
a) Explain the difference between a frame and a shell structure. [2]
b) Name an example of each type of structure. [2]
Bite Size Question 8
The figure below shows two type of drawings.
Source: http://www.flickr.com/photos/93090508@N07/8461937487/
a) Name the type of drawings shown above. [2]
b) Explain the purpose of the drawings used. [2]
Source: http://www.flickr.com/photos/93090508@N07/8461937487/
a) Name the type of drawings shown above. [2]
b) Explain the purpose of the drawings used. [2]
Bite Size Question 7
1. The figure below shows a type of drawing.
Source: http://www.nomenclaturo.com/tag/acoustic-guitar
a) Name the type of drawing shown in the figure above. [1]
b) Explain why this type of drawing is used. [2]
Source: http://www.nomenclaturo.com/tag/acoustic-guitar
a) Name the type of drawing shown in the figure above. [1]
b) Explain why this type of drawing is used. [2]
Thursday, March 13, 2014
Bite Size Question 6
1. It is important to select the best idea for development after ideation.
a) Give 2 advantages of PMI as compared to SWOT in selecting the best idea for development. [2]
b) Describe any 2 aspects of development in the design process. [4]
a) Give 2 advantages of PMI as compared to SWOT in selecting the best idea for development. [2]
b) Describe any 2 aspects of development in the design process. [4]
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