12.11 Thermal Energy: Convection (7.8A)

Fill in the blank with the correct words. 1. Convection is the transfer of thermal energy through the movement of ______________ and _______________.

(a)  

The circular motion that moves heat through a liquid or gas is called a ______________ current.

(a)   ​

• convection
• conduction
• radiation

Tags

NGSS.MS-ESS2-6

Cooler fluids tend to ______________ in a convection process.

(a)  

• sink
• rise
• remain in place

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When you boil water, the movement of water from the bottom of the pot to the top is an example of ______________.

(a)  

• convection
• conduction
• radiation

Warm air rises and the cool air sinks demonstrates this type of heat transfer. 

• conduction
• convection
• radiation
• Insolation 

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

What causes a convection current to form in a pot of boiling water?

• Water evaporating quickly

• Warm water rising and cool water sinking

• The pot being made of metal

• The lid being put on the pot

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In convection, which part of a liquid or gas moves upward?

• The coldest part

• The densest part

• The warmest, least dense part

• The part with the most salt

Tags

NGSS.MS-PS1-4

Which of these is NOT an example of convection?

• Hot air rising above a heater

• Soup stirring itself as it is heated

• Heat moving through a metal spoon

• Ocean currents moving warm water

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

Why does warm air rise in a room?

• It is heavier than cold air

• It is less dense than cold air

• It has more color

• It is pushed by the floor

Tags

NGSS.MS-PS1-4

What happens to the cooler fluid in a convection current?

• It rises to the top

• It turns into a solid

• It sinks to the bottom

• It disappears

Tags

NGSS.MS-ESS2-6