Heat Transfer..Takin it up a NOTCH!!!

After cooking an egg in boiling water, you cool the egg by putting it into a bowl of cold water.  Which of the following explains the egg's cooling process?

• Temperature is transferred from the egg to the water.

• Energy is transferred from the water to the egg.

• Energy is transferred from the egg to the water.

• Cold moves from the water into the egg.

Why do we wear sweaters in cold weather?

• To keep cold out.

• To generate heat.

• To reduce heat loss.

• All of the above.

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.

As water in a freezer turns into ice,

• the water absorbs energy from the air in the freezer.

• the water absorbs the coldness from the air in the freezer.

• the freezer air absorbs heat from the water.

• the water neither absorbs nor releases energy.

In how many ways does heat move around the universe?

• One

• Three

• Two

• Ten

Hot air moving up is an example of 

• Radiation

• Conduction

• Magic

• Convection

A microwave oven uses which of the following to heat foods.

• Microwave elves

• Radiation

• Convection

• Conduction

A fire radiates ________ waves.

• surf

• killer

• heat

• cold

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

• Hotter to colder

• Colder to hotter

• Hotter to hotter

• Colder to colder

The type of heat transfer that happens through direct contact of molecules or particles with each other is ___________________.

• Convection

• Conduction

• Radiation

• insulation.