radiation

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.

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

• conduction
• convection
• radiation
• Insolation 

Ironing a shirt is an example of...

• condensation
• conduction
• convection
• radiation

A group of friends gather around a fire to stay warm.

• conduction
• convection
• radiation

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

• convection
• radiation
• insulation
• conduction

Hot coffee is stirred with a spoon; the spoon gets hot due to

• conduction
• convection
• radiation

In a swimming pool, water near the surface is slightly warmer. The warm water rises because of

• conduction
• convection
• radiation

The sun shines down on this family as the play on the beach.

• conduction
• convection
• radiation

How many kinds of heat transfer are there?

• 1
• 2
• 3
• 4 or more

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

• Hotter to colder
• Colder to hotter
• Hotter to hotter
• Colder to colder