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Copy of 8Kc gamma controlling transfer (10/22/2024)
By Katie Bruce
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Last updated 7 months ago
10 questions
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Question 1
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Question 2
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Question 3
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Question 10
10.
Which type of heat transfer is reduced by insulators?
conduction, radiation and convection
Conduction
Radiation
Convection
Why do houses have an insulated attic?
For storage space
To prevent fire
To maintain the structure
To reduce heat loss
What principle does insulation work on?
Condensation of moisture
Trapping air to prevent heat transfer
Absorbing heat
Reflecting heat
Question 4
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Question 5
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Question 6
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Question 7
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Question 8
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Question 9
9.
Why does a vacuum flask have a double-walled container?
For enhanced durability
Makes the flask look larger
To create a vacuum between for insulation
To hold more liquid
Neoprene is a good insulator because
it is waterproof
it has air pockets
it is a good conductor
it floats
A wet suit works to keep a diver warm by
keeping the diver dry
preventing energy transfer
giving the diver air
making the diver wet
A wetsuit must fit well to avoid
water flow between suit and diver
air pockets developing
shark attack
blood circulation
When divers wear a thick wetsuit, in really cold water, they need extra weight to help sink under water because
cold water is less dense
divers want more time underwater
the tiny air pockets make neoprene float
hot divers float better
A difference between drysuits and wetsuits
drysuits trap water near the skin
wetsuits trap water near the skin
drysuits have thicker neoprene
wetsuits trap neoprene near the skin
Drysuits keep a diver warm in cold water because the diver
is uncomfortable
the diver gets in warm water
the diver stays above water
wears warm dry clothes
