Convection Conduction and Radiation

Heat transfer by conduction occurs when...

• particles bump into each other

• large numbers of atoms move from place to place

• atoms give off heat in the form of electromagnetic waves

• electromagnetic waves travel from place to place through a vacuum

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

During convection, more dense currents _________ and less dense currents _________.

• sink, rise

• rise, sink

Which material is the best conductor of heat?

• Wood

• Plastic

• Glass

• Steel

Objects that keep heat in are called...

• Thermal Equilibrium

• Thermal Conductors

• Thermal Energy

• Thermal insulators

Tags

NGSS.MS-PS3-3

Objects that allow heat to change are called...

• Thermal Equilibrium

• Thermal Conductors

• Thermal Energy

• Thermal insulators

Tags

NGSS.MS-PS3-3

True or false: two objects must be touching in order for radiation to occur

• True

• False

Radiation is heat transferring ____

• in a circular motion

• by touching

• by waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A group of friends gather around a fire to stay warm. This is an example of ________.

• conduction

• convection

• radiation

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

• hotter to colder

• colder to hotter

• hotter to hotter

• colder to colder

Tags

NGSS.MS-PS3-4

The baby chickens kept warm by the heat lamps. This is an example of ________.

• conduction

• convection

• radiation