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

Last updated 5 months ago

10 questions

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Question 1

1.

Why do houses have an insulated attic?

For storage space

To prevent fire

To maintain the structure

To reduce heat loss

Question 2

2.

What principle does insulation work on?

Condensation of moisture

Trapping air to prevent heat transfer

Absorbing heat

Reflecting heat

Question 3

3.

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

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Question 4

4.

In this experiment, beakers of hot water are wrapped in fleece. What device is used to measure temperature?

hot water

fleece

beaker

thermometer

Question 5

5.

The temperature is recorded every 2 minutes. What device is used to measure temperature?

thermometer

beaker

stopwatch

fleece

Question 6

6.

Which beaker will transfer heat most quickly?

no fleece

 1 layer fleece

2 layer fleece

4 layer fleece

Question 7

7.

Which beaker is best insulated?

no fleece

 1 layer fleece

2 layer fleece

4 layer fleece

Question 8

8.

What is the independent variable?

the volume of water

the layers of fleece

the temperature

the thermometers

Question 9

9.

The layers of fleece trap pockets of air. This makes the fleece a good

conductor

radiator

insulator

Question 10

10.

To be fair, which of the following should be kept constant?

volume of hot water

number of layers of fleece

the thermometer

the final temperature of the water