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Copy of 8Kc gamma controlling transfer (10/22/2024)

Last updated 5 months ago

10 questions

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Question 1

1.

Which type of heat transfer is reduced by insulators?

conduction, radiation and convection

Conduction

Radiation

Convection

Question 2

2.

Why do houses have an insulated attic?

For storage space

To prevent fire

To maintain the structure

To reduce heat loss

Question 3

3.

What principle does insulation work on?

Condensation of moisture

Trapping air to prevent heat transfer

Absorbing heat

Reflecting heat

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Question 10

10.

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

Question 4

4.

Neoprene is a good insulator because

it is waterproof

it has air pockets

it is a good conductor

it floats

Question 5

5.

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

Question 6

6.

A wetsuit must fit well to avoid

water flow between suit and diver

air pockets developing

shark attack

blood circulation

Question 7

7.

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

Question 8

8.

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

Question 9

9.

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