All of AQA Particle Model Explained - GCSE Physics 9-1 REVISION
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This video is a summary
This video is a summary of all of AQA particle model of matter, explained for GCSE Physics 9-1. You can use this as an AQA particle model of matter revision tool.
The density of an object is equal to its mass per unit volume, ρ = m/V. An object which is more dense will have a greater mass for the same volume.
The particles in solids and liquids are closely packed but the bonds between particles in a liquid allow them to move freely past each other. Particles in a gas are much more spread out.
A solid melts into a liquid. A liquid solidifies into a solid.
A liquid evaporates to a gas. A gas condenses into a liquid.
A solid can sublimate straight into a gas.
The specific heat capacity (c) of a substance is the change in energy (ΔE) needed to raise the temperature Δθ of 1kg (m) of the substance by 1°C. Hence: ΔE = mcΔθ
Thanks for watching,
Lewis
Relevant for GCSE Physics 9-1 in the following exam boards:
AQA (including Trilogy)
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The density of an object is equal to its mass per unit volume, ρ = m/V. An object which is more dense will have a greater mass for the same volume.
The particles in solids and liquids are closely packed but the bonds between particles in a liquid allow them to move freely past each other. Particles in a gas are much more spread out.
A solid melts into a liquid. A liquid solidifies into a solid.
A liquid evaporates to a gas. A gas condenses into a liquid.
A solid can sublimate straight into a gas.
The specific heat capacity (c) of a substance is the change in energy (ΔE) needed to raise the temperature Δθ of 1kg (m) of the substance by 1°C. Hence: ΔE = mcΔθ
Thanks for watching,
Lewis
Relevant for GCSE Physics 9-1 in the following exam boards:
AQA (including Trilogy)
_____________________________________
MY PHYSICS WEBSITES
Find even more videos organised by exam board and topic at:
GCSE Physics Online
► https://www.gcsephysicsonline.com
A Level Physics Online
► https://www.alevelphysicsonline.com
MY YOUTUBE CHANNEL
Your support in watching this video has been invaluable! To contribute towards the free videos on YouTube, make a small donation at:
► https://www.paypal.me/physicsonline
FOLLOW ME
► https://www.youtube.com/physicsonline...
► Instagram: physicsonline
► Facebook: gcseandalevelphysicsonline
#particles #gcsephysics #physicsonline
5 سال پیش
در تاریخ 1398/01/18 منتشر شده
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