Thermal Energy

What is the definition of CONVECTION

• When heat transfers through waves.
• When heat transfers from objects that are touching.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• Heat traveling from the sun

What kind of heat transfer happens when the sun is heating your body?

• Conduction
• Radiation
• Convection
• Density

The heat from a hot burner to a pot is transferred by ______.

• convection
• insulation
• radiation
• conduction

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

• conduction
• convection
• radiation
• Insolation 

Warm air is __________ dense than cold air and rises creating convection currents.

• more
• less

Transfer of thermal energy through "space"

• conduction
• convection
• radiation

Poor conductors like wood and plastic are called:

• conductors
• insulators
• burners

You lay on a hot rock at night so that you can keep warm by ...

• Conduction
• Convection
• Radiation

The most common temperature scale used in the world where water freezes at 0 degrees and boils at 100 degrees is called the __________________ scale.

• Celsius
• Fahrenheit
• Pound
• Kelvin

Tags

CCSS.4.MD.A.1

Hot coffee is stirred with a spoon, the spoon get hot due to...

• Conduction
• Convection 
• Radiation