Heat Transfer

How many kinds of heat transfer are there?

• 1
• 2
• 3
• 4 or more

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

• conduction
• convection
• radiation

If you put a metal spoon and a wooden spoon into a pot of boiling water, one will become too hot to touch.  Why?

• Metals conduct heat better than wood.
• Wood conducts heat better than metals.
• Metals pull in heat because heat is attracted to metals.
• Wood isn't as strong as metals.

The Gulf Stream is a current that brings warm ocean water from the south to the north.

• conduction
• convection
• radiation

Walking on the warm sand sand with your bare feet.

• conduction
• convection
• radiation

Which direction will the heat flow while this person holds a hot cup of tea?

• from the cup to her hand
• from her hand to the cup
• no heat is transferred

Johnny accidentally grabbed the handle of the hot pot.

• conduction
• convection
• radiation

A toaster toasting bread is an example of 

• condensation
• conductio
• convection
• radiation

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.

Heat transfers from an area of ____temperature to an area of ___ temperature.

• high to low
• low to high
• high to high