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Cards (122)
What is the purpose of Mr. Ridley's design and Technology revision session?
To boost your grade in
design and technology
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How many episodes are included in the design and Technology revision?
Six
episodes
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What are the topics covered in the six episodes of the revision?
Plastics
Hand tools
Joining metals for sustainability
Sustainability question
Health and safety
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What is the raw material that most plastics are made from?
Oil
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Why is it important to understand where oil comes from in relation to plastics?
Because oil is a finite resource and takes millions of years to form
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What happens to plastic when it is put into landfill?
It will not
biodegrade
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What are the two major types of plastics?
Thermoplastics
and
thermosetting plastics
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What are the characteristics of thermoplastics?
Can be
melted
and reshaped multiple times
Easily
recycled
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What are the characteristics of thermosetting plastics?
Retain their form once
heated
and cooled
Difficult
to recycle
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What is an example of a thermosetting plastic used for electrical casings?
Urea formaldehyde
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What is a key property of polyester resin glue?
It is
waterproof
and has good
chemical
resistance
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What is acrylic known for in terms of its properties?
Good
impact strength
and
lightweight
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What is polythene commonly used for?
Shampoo
bottles
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What is PET known for?
Excellent
waterproofing
and
good
moisture
barrier
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What is PVC commonly used for?
Pipes
and plastic window frames
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What is ABS used for?
High-quality toys like
Lego
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What is a key feature of 3D printing in relation to plastics?
It builds up layers to form a solid object
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What is PLA and how is it different from other plastics?
PLA is made from plants and is
biodegradable
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What are the two important terms related to plastics that should be remembered?
Plasticity
: Ability to change shape without cracking
Durability
: Ability to withstand weathering and deterioration
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What are the two main types of measuring tools used in the workshop?
Vernier caliper
and
steel ruler
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What is the accuracy of a Vernier caliper?
Measures to
0.1 millimeter
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What is the purpose of a coping saw?
To make
curved cuts
in thin wood and plastic
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What is a try square used for?
To draw lines at
90 degrees
to an edge
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What is the function of a wood vice?
To hold a piece of wood while working on it
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What does a wood plane do?
Shaves off
thin strips
of wood for a smooth finish
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What is the difference between a slotted screwdriver and a posi drive screwdriver?
Posi drive can apply a higher
twisting force
without slipping
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What is the purpose of a marking gauge?
To mark lines parallel to a
straight edge
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What is the use of a rasp?
To shape wood with a
coarse
file
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What is the function of a hacksaw?
To cut
metal
and plastics
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What is a center punch used for?
To create an
indentation
for
accurate
drilling
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What are tin snips used for?
To cut
thin sheet metal
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What are the two categories of joining metals?
Permanent
joining (e.g.,
welding
,
brazing
)
Non-permanent
joining (e.g., nuts, bolts, screws)
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What is soldering?
A method of joining
metals
using a low
melting
point metal called solder
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What is the main characteristic of a weak join in soldering?
It uses a low
melting point
metal
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What are two tools you might use to work with aluminum?
Steel
ruler and a
scriber
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What is a hacksaw used for?
To cut
metal
and plastics
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What is the purpose of tin snips?
To cut
thin sheet metal
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What are the two categories of joining metals?
Permanent
joining:
welding
and
brazing
Non-permanent
joining:
nuts
,
bolts
, and
screws
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What is soldering and what type of metal does it use?
Soldering is a weak join that uses a
low melting point
metal called solder
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What tool is typically used for soldering?
An electrically heated
soldering iron
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See all 122 cards
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