DT

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what is crowdfunding
when an individual or a business invests in a starting business in exchange for a reward.
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what is virtual marketing
online advertising
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what is virtual retailing
online shopping
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what is a cooperative
a business owned and run by its members or workers. they make the decisions together and share the profit
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what is fair trade
it ensures that farmers from lower income countries are paid a fair amount for their products.
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what is CAD
Computer Aided Design
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what is CAM
Computer Aided Manufacture
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give an example of CAD
sketchup, AutoCad..
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give and example of CAM
laser cutter, 3D printer...
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what is JIT
Just-In-Time, when products are only made when required/ordered
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what is a life cycle assessment
assessing a products impact on the environment throughout its lifetime
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what are the 5 stages of LCA
1.extracting raw materials
2.manufacture
3.distribution
4.use
5.disposal
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what are the 6 Rs
recycle, rethink,repair, refuse, reuse,reduce
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name 5 renewable energy sources
tidal, solar, wind, hydro electricity and biomass
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name the 3 main fossil fuels
oil, gas and coal
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what is a modern material
a new material with enhanced/useful properties w
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what is a smart material
a material which changes in response to an external stimuli
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what is a composite material
a material made of two or more materials
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give an example of input device
switches, LDRs, thermistors or pressure sensors
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name a process device
microcontrollers
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name an output device
buzzers, speakers or lamps
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what is a movement in a straight line in one direction
linear
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what is a movement in a straight line in two directions
reciprocating
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what is a rotational movement in or around an axis
rotary
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what is a movement back and forth along a curved path
oscillating
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what is the equation for mechanical advantage
MA=load/effort
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name the three types of linkages
bell&crank, push/pull ad reverse motion
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what a physical property
relates to the actual material
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what is a working property
how the material responds to external forces/conditions
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give an example of physical property
density, fusibility, conductivity, absorbency
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give an example of working property
strength, hardness, toughness, malleability, ductility, elasticity
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what is a stretching or pushing force
tension
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what is a squashing or pushing force
compression
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what is the combination of tension and compression
bending
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what is a cutting force(the opposing forces are not directly opposite to each other)
shear
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what is a twisting force
torsion
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Other cards in this set

Card 2

Front

what is virtual marketing

Back

online advertising

Card 3

Front

what is virtual retailing

Back

Preview of the front of card 3

Card 4

Front

what is a cooperative

Back

Preview of the front of card 4

Card 5

Front

what is fair trade

Back

Preview of the front of card 5
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