Conduction, Convection, and Radiation

Insulation

Preventing heat from flowing in or out of a material.

true

all atoms have thermal heat energy because the atoms or molecules that make matter are in constant motion

radiation

only way heat is transferred that can move through the relative emptiness of space

Name two examples of radiation

the sun on your skin, warmth of the fire

convection

the transfer of heat by the actual movement of warmed energy in a gas or liquid by movement of currents. (It can also happen in some solids, like sand)

conduction

the transfer of heat within a substance by direct contact

conduction

transfer of energy through matter using direct contact

convection

transfer of heat by physical movement of the heated substance itself (vertical movement)

conduction

transfer of heat from the Earth's surface to the Earth's atmosphere

radiation

transfer of heat from the Sun to the Earth's atmosphere

Material thats good insulator

warm clothing

Convection results from the movement of

warm fluids or gases

poor conductor

air

radiation

A person placing their cold hands over a warm fire

radiation

A person placing their hand over a hot burner

conduction

A pot sitting on a hot burner.

Heat energy can be transfered in three ways

Conduction, Convection, Radiation

What are the three main types of heat transfer?

Conduction, convection, radiation

Radiation

Angelina works at a restaurant. After the cooks get finished cooking the food they put it in a window where there is heating lamps above to keep it warm. This is an example of...

Convection

At the restaurant where Angelina works there is an oven that circulates the air inside to heat the food faster. This is an example of...

temperature

Average motion of the atoms and molecules that we sense

Conduction

Cynthia was making soup and left the spoon that she used to stir it in the pot while it was cooking. She went to stir it again and burnt herself on the spoon. This is an example of...

Conduction

Energy is passed from atom to atom through direct contact

Convection

Harry's family loved to grow fresh vegetables for their family to eat. During the summer Harry went into the green house and noticed the air seemed really warm inside but cooler toward the ground. This is an example of...

conduction, convection, radiation

Heat transfer types

Conduction

Henry and his friends were telling ghost stories by the campfire. Henry could feel heat as he put a pot of water on the portable stovetop that they had placed over the fire. The hot pot on the stove top is an example of...

convection

How the inside of a greenhouse works.

Radiation

In high school Julie liked to lie out in the sun in her backyard to get a tan. This is an example of...

Radiation

Jake went camping with some friends. While they were up in the mountains it started getting cold so they started the fire early. The heat energy that comes off of the fire is an example of...

Radiation

Jim's dad was grilling hot dogs for their big 4th of July party. When Jim walked outside he noticed the sun beaming down on the grill Jim said, "Boy, it sure is extra hot near the grill today Dad." The sun's beam hitting the grill is an example of...

Conduction

Kyla was skiing in the mountains with her family for spring break. As she was soaring down the ski slope she tripped and fell into the snow. She took her gloves off, picked up the snow in her hand and it started to melt. This is an example of...

Convection

Lisa was hungry when she came home from school and decided that she would like to make some macaroni. She heated up the water on the stove and noticed that it was circulating in the pan. This is an example of ...

radiation

Lying out in the sun to get a tan

convection

Macaroni rising and falling in a pot of boiling water

Convection

Method of heat transfer of thermal energy by fluid circulation of the movement of atoms

Conduction

Molecules of energy travel through a solid.

conduction

Picking up a hot cup of coffee

convection

Putting your wet shoes on a floor vent to dry them faster

Conduction

Sammy wasn't feeling well so her mom made chicken noodle soup. Mom put ice cubes in the soup to cool it. Sammy then took a spoonful of soup and carefully brought it to her lips. The soup touching Sammy's lips is an example of...

Kinetic Energy

The energy of a motion.

Radiation

The transfer of energy by electromagnetic waves.

Why are gases poor conductors

Their particals are so far apart

heat energy

Total average kinetic energy, the energy that flows due to temperature differences;always transferred from warmer to cooler substances

conduction

Touching a metal spoon that is sitting in a pot of boiling water

Convection

Transfer of energy by the flow of a liquid or a gas.

Radiation

Transfer of heat through electromagnetic radiations

conduction

Using a heating blanket to get warm

Radiation

While at the nail salon Jenifer noticed that some of the girls use a UV light to dry a special kind of gel nail. This is an example of...

Name two examples of conduction

Your hand touching a hot dish, You burn your hand

Name two examples of convection

a heater, boiling water

radiation

causes some of the Earth's heat to be lost back into space

Material thats a good conductor

cooking Pans

why do different metals conduct heat different rates

different materials have different conductivites

Conduction occurs between objects in

direct contact

radiation

electromagnetic waves that directly transport energy through space;sunlight is a form of this that brings heat to our planet without the aid of anything

conduction

energy is transferred by direct contact

radiation

energy is transferred by electromagnetic radiation

convection

energy is transferred by the mass motion of molecules

Radiation

energy that is transferred as electromagnetic waves, such as visible light and infrared waves

Energy transferred through partical collisions

heat

convection

heat transfer by the movement of mass from one place to another;can take place only in liquids and gases

Conduction is...

heat transfer through contact

What makes a substance a good or poor conductor depends in part on

how much energy is required to change the temperature of the substance by certain amount

convection

main driving force for the transfer of heat between air masses

Insulator

material that transfers energy poorly

Conductor

material which energy can be easily transferred as heat

good conductor

metal

Convection

movement of matter due to differences in density that are caused by temp. variations can result in transfer of energy as heat

convection

moves about the planet heat gained by conduction and radiation from the sun;heating of the Earth isn't even

Radiation does not require

physical contact

conduction and convection

require motion of molecules like air or water to move heat