Thermal Processes

heat detector

A(n) ________ is placed at a constant distance away from the cube i.e.

→it

________ does not need a medium for transmission.

Infra red radiation

________ can travel across vacuum.

absence of free electrons

The ________ mean that molecules can not easily pass on kinetic energy to their neighbors, so heat can only be transmitted through particle vibrations and collisions.

Liquids

________ and non- metals are poor conductors of heat.

thermometer

A(n) ________ is placed on each plate and initial reads of the ________ are recorded.

Insulators

________: Materials that are very poor conductors.

presence of free electrons

The ________ is the main reason why metals are great conductors.

metal cube

A(n) ________ with is painted with 4 different types of surfaces: matt black, shiny black, white and silver.

radiant heater

A(n) ________ is placed in the middle of two plates at equal distance away from the heater.

plates

The heater is switched on and the temperatures of each of the ________ are measured in equal intervals.

Ions

________ are close together, so vibrations are passed onto neighboring ________ which in turn, begin to vibrate quicker too.

Matt black

________ is the best absorber and emitter of radiation.

metallic structure

The ________ is composed of a lattice of metal ions, and a sea of ‘ free electrons that move throughout the structure.

Infra red radiation

________ can be emitted, absorbed, or reflected.

absence of free electrons

The ________ is the reason why materials are poor conductors.

Infra red radiation

________ is a part of the electromagnetic spectrum, and is emitted by any hot object.

Conduction

The process by which heat or electricity is directly transmitted through the material of a substance

Insulators

Materials that are very poor conductors

Convection

Heat transfer through liquids and gases (fluids)

A metal cube with is painted with 4 different types of surfaces

matt black, shiny black, white and silver