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