Energy Loss

Why are materials with low thermal conductivity used in building walls?

• They are cheaper

• They conduct heat very well

• They do not conduct heat well

• They are more durable

Tags

NGSS.MS-PS3-3

Which of the following is NOT a way heat energy is lost from buildings?

• Roofs

• Windows

• Walls

• Doors

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What does the thermogram of a house in the text show?

• The roof is well insulated

• The windows are the main source of heat loss

• The walls are well insulated

• The floors are the main source of heat loss

How is heat energy transferred through the walls, floor, roof, and windows of a house?

• Conduction

• Convection

• Radiation

• All of the above

Which of the following is NOT a way heat energy leaves a house?

• Walls

• Roof

• Windows

• Doors

Adaptation:

Thick hair on their back.

• So that they can eat prickly plants.

• Helps them to blend into the surroundings.

• Stops sand getting in its eyes.

• Reduces heat energy loss during cold nights.

Adaptation: Less hair elsewhere on body.

• Prevents their feet sinking into the sand.

• Shade their eyes from the sun

• An energy store.

• Allows heat energy loss during the day.

Tags

NGSS.MS-LS4-4

Turn off and unplug appliances such as television when no one is using it.

• TRUE

• FALSE

Tags

NGSS.MS-ESS3-3

Avoid frequent opening and closing of the refrigerator to reduce the amount of energy used to cool the freezer.

• TRUE

• FALSE

Tags

NGSS.MS-PS3-3

What is the primary reason for energy loss in electrical transmission lines?

• Resistance in the wires

• High voltage levels

• Low current flow

• Efficient transformers