Page 162 - Knowledge Organiser Yr9 24-25

Knowledge Base: Design & Technology Metals & Alloys / Crumble Year 9 | Autumn Term Programmable components
1. Metals & Alloys
1.1
ferrous
This group of metals all contain iron (ferrite) and are magnetic.
1.2
non-ferrous
This group of metals do not contain iron and are not magnetic.
1.3
alloys
Alloys are a mixture of at least one pure metal and another element.
1.4
aluminium
High strength to weight ratio. Used to manufacture aircraft, car body panels and many other items.
1.5
copper
Ductile and malleable. Used to manufacture plumbing supplies and electrical cable.
Crumble kits
Sparkles
1.6 mild steel Tough and ductile. Commonly used in construction.
Crumble controller
Set & Snap Tool
Snaphead Rivet Cross & Draw Filing
1.7
high carbon steel
Less ductile than mild steel but harder. Commonly used to manufacture tools.
1.8
riveting
Riveting is a semi-permanent and non-thermal joining method that involves using a mechanical fastener/rivet (a metallic part with a dome-shaped head) to join sheet metal parts.
1.9
ball peen hammer
It has two heads, one flat and the other, called the peen, rounded. The peening face is used for rounding off rivets.
Coat Hook
Cordless Drill
Ball peen Hammer
Countersink
2. Programmable Components – Crumble kits
2.1 sequence
2.2 input & output
2.3 Crumble
2.4 Scratch
How code is run in order from top to bottom, running each line in turn.
Something taken in, or received by the processor/program, or something put out by the processor/program.
The Crumble is an easy-to-use programmable controller produced by Redfearn Electronics to teach KS3 D&T in schools. The Crumble software is Inspired by MIT Scratch, programs are simply built by snapping blocks together on screen.
2.5
Sparkles
The Sparkle is one of the most popular and satisfying Crumbs (components) for the Crumble. It is an easy-to-use RGB LED, and as such, allows a variety of different colours to be produced.
2.6 ldr
The light-dependant resistor (LDR) is a type of input device, which can be used to monitor light levels. Its resistance changes depending on the amount of light.
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