Heat Transfer 9/12 Whole Group

Transfer

To move from one thing or object to another

Multiple Choice

How does heat move?

• High to low

• Low to high

Multiple Choice

The three types of heat transfer are...

• spilling hot soup in your lap

• hot, hotter, and hottest

• conduction, convection and radiation

• conduction, convection and insolation

Multiple Choice

What is the transfer of heat by direct contact?

• Convection
• Electromagnetic waves
• Radiation
• Conduction

Multiple Choice

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

• conduction
• convection
• radiation

Convection

• The flow of heat through a liquid or gas, causing hot parts to rise and cooler parts to sink

Multiple Choice

_____________ occurs when warm air rises and is replaced by cooler air

• convection
•                                                                                                                   conduction                  
• radiation

Multiple Choice

Boiling water moving in a circular motion

• Conduction

• Convection

• Radiation

Multiple Choice

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

• convection
• radiation
• insulation
• conduction

Multiple Choice

Near the ceiling of a room the air is warmer; the warm air rises because of

• conduction
• convection
• radiation

Multiple Choice

Radiation=

• physical contact

• warm air rising

• Heat transfer through electromagnetic waves

• say what?

Multiple Choice

You get sunburned due to __________ from the sun.

• conduction
• convection
• radiation

Let's Review!

• Transfer: Movement of something from one place to another

• Three types of heat transfer

• 1. Conduction: Heat is transferred through direct contact

• 2. Convection: Flow of heat through a liquid or gas, causing hot parts to rise and cooler parts to sink

• 3. Radiation: Transfer of heat through electromagnetic waves.

Multiple Choice

You pick up a cold plastic water bottle off of the countertop. The countertop underneath the bottle feels colder that the rest of the counter. Which explanation do you think is the best?

• The cold has been transferred from the water bottle to the counter

• There is no heat energy left in the counter beneath the water bottle

• Some heat has been transferred from the counter to the water bottle

• The heat beneath the water bottle moves away into other parts of the countertop

Multiple Choice

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

• Temperature is transferred from the pasta to the water.

• Cold moves from the water into the pasta.

• Energy is transferred from the water to the pasta.

• Energy is transferred from the pasta to the water.

Multiple Choice

the transfer of heat in a fluid (gas or liquid) by means of up & down movements called convection currents

• conduction

• convection

• radiation

Multiple Choice

Heat always moves from

• cold objects to hot objects

• hot objects to cold objects

Multiple Choice

Heating food in the microwave is an example of...

• Conduction

• Convection

• Radiation

Multiple Choice

A spoon getting hot in a hot cup of tea is an example of...

• Conduction

• Convection

• Radiation

Multiple Choice

Warming your hands above a fire is an example of...

• Conduction

• Convection

• Radiation

Multiple Choice

Your legs getting warm when you are standing next to a fire is an example of...

• Conduction

• Convection

• Radiation