Use the table of temperatures measured in two areas of a house to answer the question.

Question

Area Temperature (ºC)
downstairs 22
upstairs 26
Which statement best explains the temperature difference?

(1 point)
Responses

Warm air rises by convection to the upstairs.
Warm air rises by convection to the upstairs.

The cooler air downstairs loses energy to the environment.
The cooler air downstairs loses energy to the environment.

Energy from the cooler air is transferred upstairs.
Energy from the cooler air is transferred upstairs.

Energy is transferred between the areas when the molecules touch.

Answer 1

The statement that best explains the temperature difference is:

Warm air rises by convection to the upstairs.

This is because warm air is less dense than cooler air, causing it to rise and leading to higher temperatures in the upstairs area compared to downstairs.

Answer 2

Which option is an example of heat transfer by conduction?(1 point)
Responses

pavement heating up in the sun
pavement heating up in the sun

air getting warm from a radiator
air getting warm from a radiator

person getting warm from an electric blanket
person getting warm from an electric blanket

air conditioner cooling the room

Answer 3

The option that is an example of heat transfer by conduction is:

person getting warm from an electric blanket.

In this case, heat is transferred directly from the electric blanket to the person's body through direct contact, which is the definition of conduction.

Answer 4

The transfer of heat by direct contact is called _____(1 point)
Responses

kinetic energy.
kinetic energy.

radiation.
radiation.

conduction.
conduction.

vibrating molecules.
vibrating molecules.

Answer 5

The transfer of heat by direct contact is called conduction.