Convection

A ____ is anything that has loosely moving molecules that can move easily from one place to another.

• solid
• fluid
• liquid

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 is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• When heat transfers from objects that are touching.
• When heat transfers through the heater or AC in your house.

Convection is one of three ways that thermal energy can be transferred.  The other two are ___ and ___?

• conduction and reflection
• absorption and radiation
• convection and conduction
• conduction and radiation

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

• Conduction
• Radiation
• Convection
• Density

Which of the following is an example of convection?

• A hair dryer is drying up your hair.
• When the AC or heater changes the temperature.
• When a car engine turns hot after being turned on.
• When you are making soup and the water is rising and lowering.

Convection currents in the atmosphere create what? 

• wind
• steam
• ocean current
• volcanoes

Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer. 

• conduction
• convection
• radiation

Which of the following is needed for convection to happen?

• Fluid/s
• Light in the form or rays
• Electromagnetic waves
• Fire

The way the heat is moving from the hot coffee is called...

• convection
• radiation
• insulation
• conduction