[PDF] Conduction, Convection, & Radiation

Conduction, Convection, and Radiation

Conduction is heat transfer through matter by touching Metals conduct heat well Air is not as good a conductor of heat This is a direct contact type of heat transfer The only air heated by the Earth is the air at the Earth’s surface As a means of heat transfer, conduction is the least significant with regard to heating the Earth’s

Heat Transfer: Conduction, Convection, and Radiation

Conduction is how heat travels between objects that are touching Conduction travels fastest through solids, but liquids and gases can also conduct heat Some materials, like metal, can conduct heat very quickly, while other materials (like plastic or wood) conduct heat very slowly Convection is how heat travels through fluids – liquids and

Conduction in the Cylindrical Geometry - Clarkson University

profile in steady conduction As anexample , recall that the steady temperature profile for one-dimensional conduction in a rectangular slab is a straight line, provided the thermal conductivity is a constant In the cylindrical geometry, we find the steady temperature profile to be logarithmic in the radial coordinate in an analogous situation

Conduction, Convection, & Radiation

Conduction •Heat traveling through solids •Two objects must touch or have direct contact •As molecules heat up they move faster and expand •When you touch one hot surface to another, the hot molecules bump into the other molecules which makes them start to move faster •An object gets hotter from the movement of the molecules

Anatomy of the conduction system - Brown University

II CONDUCTION SYSTEM ANATOMY The functions of the electrical system of the heart (Fig II-1) are not only initiation and rate of the heartbeat, but its coordinated transmission to the entire heart resulting in maximum mechanical efficiency Anatomy of the conduction system Sinus Node AV Node right ventricle left ventricle left atrium right atrium

Understanding Heat Transfer, Conduction, Convection and Radiation

Conduction When you heat a metal strip at one end, the heat travels to the other end As you heat the metal, the particles vibrate, these vibrations make the adjacent particles vibrate, and so on and so on, the vibrations are passed along the metal and so is the heat We call this? Conduction

Lecture 39 - Review of Conduction

1 HEAT CONDUCTION - Elseviercom

1/6 HEAT CONDUCTION x y q 45° 1 3 The Heat Conduction Equation The solution of problems involving heat conduction in solids can, in principle, be reduced to the solution of a single differential equation, the heat conduction equation The equation can be derived by making a thermal energy balance on a differential volume element in the solid

Basic Nerve Conduction Studies - AANEM

Conduction velocity: speed; can be affected by both axonal loss and demyelination Large, fast conducting fibers are lost Moderate slowing

Upper and Lower Extremity Nerve Conduction Studies

Oct 18, 2019 · Nerve Conduction Studies Kelly G Gwathmey October 18, 2019 Virginia Commonwealth University 2019 Financial Disclosure

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Conduction, Convection,

and Radiation

Your Energy Assignment:

Create a google document in your science folder

Name the Document, Conduction,Convection,Radiation(add your first and last name, and period)-share it with Mrs. Woulf Read all slides in this PowerPoint and take Cornell notes in the google document

Your Essential Question is:

What is conduction, convection, and radiation?

forget 5 Key ideas in 5 sentences. Add a topic sentence and a good ending sentence. Your paragraph should have a minimum of 7-10 sentences.

Heat Energy

Energy is what makes things happen.

All materials are made of tiny particles

called molecules.

Molecules are always moving.

The movement creates heat.

The amount of heat depends on how fast

the molecules move.

As the molecules move faster, they take up

more space and make the object expand.

Heat Transfer

Heat can be transferred from one

object to another in 3 different ways:

Conduction

Convection

Radiation

Conduction

Heat traveling through solids.

Two objects must touch or have direct contact.

As molecules heat up they move faster and

expand.

When you touch one hot surface to another, the

hot molecules bump into the other molecules which makes them start to move faster.

An object gets hotter from the movement of the

molecules.

All solid objects conduct heat, some are better

conductor than others.

Metals are good conductors.

Examples of Conduction

Convection

Heat traveling through liquids or gases

As molecules heat up, the heat makes the

molecules move more rapidly and expand.

Creates currents in liquids or gasses hot air

rises and cold air sinks.

Uneven heating of our ocean creates ocean

currents.

Uneven heating of our atmosphere produces

huge convection wind currents.

Scientists use global and local wind patterns to

predict weather.

Examples of Convection

Radiation

Release of invisible heat energy waves

from the sun or fire.

No movement of molecules to transfer

heat.

Feel warm without touch heat radiates.

Radiators got their name from this type of

heat.

When the radiant energy from the sun hits

the earth, the earth soaks up the energy and changes it into heat.

Examples of Radiation

Balance

Whenever a hot object is placed near a

cold object, the hot object will transfer heat to the cold object until they reach a state of balance.

Balance happens when the temperatures

of both objects are the same.

The fast moving molecules mix with the

slow moving molecules until they are all mixed and balanced.

Create a flip book on Conduction,Convectionand

Radiation

Use a piece of notebook paper, and follow

the directions on the following slides.

Keep the flip book to hand in on Thursday.

Fold paper in half length-wise

Cut on dotted lines as shown

FOLD

CUTCUT

Fold your paper back in half

with the 3 flaps that you cut on top

Write in the following words

CONDUCTIONCONVECTIONRADIATION

On the inside of each flap, you

will write the definition of each word and draw an example of each wordquotesdbs_dbs18.pdfusesText_24