Energy Transfers And Particles Flashcards
What’s Infrared Radiation a type of?
Electromagnetic Radiation
Infrared Radiation is the only transfer that can travel through…
A Vacuum
What is a good and bad surface for Infrared Radiation?
Good= Dark, Matt (Dull) Bad= Light, shiny
When does Conduction occur?
When vibrating particles pass on their extra kinetic energy to neighbouring particles
Why is a Metal a good conductor of heat?
Because the electrons are free to move around making the particles vibrate continuously
When does Convection occur?
When the more energetic particles move from the hot region to the cooler region
Why do Liquids and Gases expand when they are heated?
Because the particles move faster
Solid Particle Arrangement
Close together, regular pattern and Vibrate in a fixed position
Liquid Particle Arrangement
Close together, random pattern and move around each other
Gas Particle Arrangement
Far apart, random pattern and move quickly in any direction
Why do Solids have a fixed position and can’t flow?
Because they can’t move from place to place
Why do Liquids flow and take shape of the their container?
Because they can move around each other
Why do Gases flow and completely fill their container?
Because they move quickly in all directions
What objects can absorb and emit Infrared Radiation?
Any objects
