Particle Model & Pressure (AQA GCSE Physics Combined Science): Flashcards
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15 cards from this deck
4 interconnected variables in a gas
4 interconnected variables in a gas
Pressure, temperature, volume, kinetic energy
Temperature & pressure relationship in gas
Temperature & pressure relationship in gas
Directly related
Energy transfer when gas temp. increases
Energy transfer when gas temp. increases
Heat energy to kinetic energy
Kinetic energy equation
Kinetic energy equation
Effect of increased kinetic energy on speed
Effect of increased kinetic energy on speed
Speed increases
Effect of increased speed on collisions
Effect of increased speed on collisions
More frequent collisions
Effect of temp. rise on pressure (constant volume)
Effect of temp. rise on pressure (constant volume)
Pressure increases
Pressure & volume relationship (constant temp.)
Pressure & volume relationship (constant temp.)
Inversely proportional
Equation: pressure × volume
Equation: pressure × volume
Units of pressure in equation
Units of pressure in equation
Pascals (Pa)
Units of volume in equation
Units of volume in equation
Cubic metres ()
If volume doubles (constant temp.), pressure...
If volume doubles (constant temp.), pressure...
Halves
Why does increased volume decrease pressure?
Why does increased volume decrease pressure?
Particles more spread out, fewer collisions
Work definition (energy transfer)
Work definition (energy transfer)
Energy transferred by a force
Effect of doing work on a gas
Effect of doing work on a gas
Increases internal energy and temperature