Thermal Energy Transfer 7.8A

TEKS 7.8A

Thermal Energy
Transfer

KEY IDEAS

• How is thermal energy transferred by conduction?
• How is thermal energy transferred by convection?
• How is thermal energy transferred by radiation?

Words to Know

conduction

thermal conductor

convection

thermal insulator

radiation

Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its original format.

Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its original format.

How is thermal energy transferred
by conduction?

The transfer of thermal
energy between objects
through direct contact is
called conduction.

Substances that thermal
energy can move through
quickly are called thermal
conductors.

Substances that thermal
energy cannot move
through are called
thermal insulators.

Alleksander/Shutterstock

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The transfer of thermal energy between objects through direct contact is called ​

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. 

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conduction

radiation

convection

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Substances that thermal energy can move through quickly are called ​

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. 

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thermal conductors

thermal insulators

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Substances that thermal energy cannot move through are called ​ ​

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.

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thermal insulators

thermal conductors

Match

Match the following

• COPPER PAN

• POT HOLDER

• CAR RADIATOR

• FLEECE JACKET

CONDUCTORS

INSULATOR

CONDUCTOR

INSULATOR

• CONDUCTORS

• INSULATOR

• CONDUCTOR

• INSULATOR

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How is thermal energy transferred
by convection?

Convection is a type of thermal
energy transfer in which currents
carry thermal energy from one part of
a fluid to another.

Warmer, less-dense material
rises. Then it sinks as it cools and
becomes more dense.

In the lava lamp, wax rises and falls
as it gains energy from the warm bulb
and falls as it loses thermal energy.

Dropdown

​ The type of thermal energy transfer in which currents carry thermal energy from one part of a fluid to another is ​

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​

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​

Placeholder

, less-dense material ​ rises . 

Then it ​

Placeholder

as it cools and becomes more dense.

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sinks

Warmer

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In the lava lamp, wax ​

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and falls as it gains energy from the warm bulb and ​

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as it loses thermal energy.

Match

Match the following

• Fluid cools and contracts

• Fluid sinks

• Fluid rises

• Fluid warms and expands

A

B

C

D

• A

• B

• C

• D

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How is thermal energy transferred by
radiation?

Being warmed by sunlight is an example of thermal energy transfer
by means of radiation, or electromagnetic waves.

Radiation can transfer energy through millions of miles of empty
space, since matter is not required for the energy to be transferred.

KarepaStock/Shutterstock

Dropdown

Being warmed by sunlight is an example of thermal energy transfer by means of ​

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, or electromagnetic waves. 

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Radiation can ​

Placeholder

energy through millions of miles of empty space, since matter is not required for the energy to be transferred.

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transfer

recieve

Match

Match the following

• MATCH THIS CHOICE TO ANSWER CHOICE C

B

A

C

• B

• A

• C