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Tech > year 8- end of year > Flashcards

year 8- end of year Flashcards

1
Q

What are carbohydrates for?

A

Provides energy

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2
Q

What are fats for?

A

Provides energy and insulation often stored under the skin.

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3
Q

What are proteins for?

A

Needed for growth, the building, and repair of body cells.

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4
Q

What are vitamins for?

A

Help in the formation of bodily tissues and are necessary for all chemical reactions in the body

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5
Q

What are minerals used for?

A

Essential for the uptake of vitamins, the formation of bodily tissues, and the carrying out of chemical reactions

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6
Q

How does yeast work?

A

Yeast feeds on sugars and produces COz as it dies.

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7
Q

What are the four elements yeast requires to work?

A
  • Time, 30-40 mins for first prove.
  • Warmth, working temp of 22-30 •C.
  • Moisture, egg, milk or water.
  • Food, sugar starch is needed
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8
Q

What does used by mean?

A

YOU’VE GOT UNTIL THE END OF THIS DATE TO USE OR FREEZE THE FOOD BEFORE IT BECOMES TOO RISKY TO EAT

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9
Q

What does best before mean?

A

YOU CAN EAT FOOD PAST THIS DATE BUT IT MIGHT NOT BE AT ITS BEST QUALITY

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10
Q

What is a balanced diet?

A

When the same amount of energy goes in and out

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11
Q

What goes in the door shelves of a fridge?

A

Condiments

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12
Q

What goes in the upper shelves of a fridge?

A

Foods that do not need cooking

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13
Q

What goes in the lower/middle shelves of a fridge?

A

Dairy

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14
Q

What goes in the bottom shelves of a fridge?

A

Raw meat and fish

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15
Q

What goes in the drawers of a fridge?

A

Vegetables, salad, herbs and fruit

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16
Q

What is calcium need for?

A

Needed for strong teeth and bones, and involved in the clotting of blood. Deficiency can lead to osteoporosis later in life.

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17
Q

What are sources of calcium?

A

Milk,cheese, eggs…

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18
Q

What is the function of vitamin D?

A

Helps the body to absorb calcium and so required for strong bones and teeth

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19
Q

What are the sources of vitamin D?

A

Oily fish, dairy products, also made naturally by the body in sunlight

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20
Q

What is the function of vitamin C?

A

Forms an essential part of collagen protein, which makes up skin, hair, gums and bones.
Deficiency cause scurvy

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21
Q

What are the sources of vitamin C?

A

Citrus fruit, strawoerries, green vegetables

22
Q

What are the functions of vitamin A

A

Needed to make the pigment in the retina for vision

23
Q

What are the sources of vitamin A

A

Meat, liver, dairy, leafy green vegetables like spinach,eggs

24
Q

What are the functions of Iron

A

Needed to make haemoglobin, the pigment in red blood cells that transports oxygen

25
Q

What are some sources of iron

A

Red meat, liver, leafy green vegetables like spinach

26
Q

What are examples of perishable foods?

A

meats, poultry, fish, dairy, and even cooked leftovers.

27
Q

Examples of non perishable foods?

A

peanut butter, rice, canned fruit and vegetables, crackers, and jarred pasta sauce.

28
Q

What are perishable foods?

A

Foods that are likely to spoil, decay or become unsafe to consume if not kept refrigerated at 40 °F or below, or frozen at 0 °F or below

29
Q

What are non perishable foods?

A

edible items that have the ability to last for an extended period without spoiling

30
Q

What are the 6 r’s?

A

Recycle, reduce, reuse,rethink, refuse, repair

31
Q

What is the source of MDF

A

Wood sawdust (trees)

32
Q

What is the source of acrylic

A

Acrylonitrile From oil or gas

33
Q

What is the source of pine

A

Wood

34
Q

What are the properties of MDF

A

Dull brown, smooth, no grain, easy to cut.

35
Q

What are the properties of acrylic

A

Colourful, transparent or opaque, shiny, scratches easily, laser cuts easily

36
Q

What are the properties of pine

A

Soft, easily shaped by hand tools

37
Q

What are the key words for ACCESS FM?

A

A-aesthetics
C-cost
C-customer
E-environment
S-safety
S-size

F-function/purpose
M-materials/manufacture

38
Q

What fabrics are used in nonwoven materials?

A

-Felt fabrics
-Bonded fabrics
-Laminated fabrics

39
Q

What fabrics are used in woven materials?

A

-Plain weave
-Twill weave
-Satin weave

40
Q

What fabrics are used in knitted materials?

A

Weft knit fabric
Warp knit fabric

41
Q

What are the properties of non woven materials

A

Cheap to manufacture
Easy to cut out
Weak (lamination strengthens them)
Do not drape well

42
Q

What are the properties of woven materials?

A

Do not stretch
Very strong
Durable
Easy to cut and sew
Crease easily

43
Q

What are the properties of knitted materials?

A

Stretch
Do not crease

44
Q

What is the checklist for using a sewing machine

A

• Have you threaded the top thread on the machine
• Is it in the shape of an ‘N’
• Have you put all your equipment away correctly - fabric shears, SOS card
• Have you left a piece of testing fabric under the presser foot

45
Q

What is the checklist for after finishing with the sewing machine?

A
  1. Get your sewing machine checked
  2. Put any scrap or rubbish in the bin
  3. Complete your work on TEAMS
46
Q

What does ergonomics mean?

A

Ensuring a product has been designed that is comfortable and easy to use

47
Q

What does rendering mean?

A

Add colour to a drawing to show light and surfaces making a design more realistic

48
Q

What are the health and safety precaution for the Hegner / Scroll saw

A

-put goggles on
-check the machine
-switch the extraction on

49
Q

A list of key points that a designer must follow when developing ideas is…

A

Specifications

50
Q

Why is a Pringles tube difficult to recycle?

A

Because it is made of multiple materials

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