2025 IGCSE - Thermal Physics
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IGCSE Science Year 10 SRG 2025
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17 Terms
Solids have…
even molecular arrangement and strong intermolecular bonds
Liquids have…
random molecular arrangement and medium strength bonds
Gases are…
spaced apart and have weak bonds
At higher temperatures, particles…
move faster, have more kinetic energy, and break/stretch their bonds
At lower temperatures, particles…
have less kinetic energy, move slower, and stronger bonds
The pressure of gas…
is forces exerted by particles colliding with surfaces, in unit force per area
During evaporation, energetic particles…
escape from the surface of a liquid, which consequently cools
Temperature, surface area and air movement all…
affect evaporation rates
Good thermal conductors include…
metals such as silver, copper and aluminium
Good thermal insulators include…
wood, plastic, air and cork
Convection is…
an important method of energy transfers in liquids and gases
Thermal radiation…
does not require a medium and is due to infrared radiation
Black, dull surfaces are…
good absorbers and emitters, but poor reflectors of light
White, shiny surface are…
poor absorbers and emitters but good reflectors of light
Conduction involves…
direct contact
Convection involves…
fluid movement
Radiation involves…
infrared waves
Note 
Flashcards (36)