Energy and kinetic theory
- Created by: amazingsnowy122
- Created on: 15-03-16 19:32
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- Energy and kinetic theory
- Energy
- Heat radiation
- Heat is transferred through conduction, convection and radiation.
- Transfer of heat by infrared radiation.
- Infrared radiation
- Emitted by solids, liquids or gases.
- Objects can both emit and absorb radiation.
- An object hotter than its surroundings emits more infrared radiation. If it is cooler it absorbs more radiation.
- The hotter it is the more it radiates infrared in a given time. This radiation is sometimes felt by humans.
- Dark, matt surfaces absorb infrared radiation whereas light, shiny surfaces reflect them
- Heat radiation
- Kinetic theory
- Solids
- Strong bonds between the atoms.
- The particles don't move and can only vibrate.
- The particles are in a fixed and regular arrangement.
- Liquids
- Weak forces between the particles
- Close together but can move around eachother
- More energy and can travel in random directions at different speeds.
- Gases
- Almost no forces of attraction between atoms.
- More enegy and are free to move at different directions at high speeds.
- Solids
- Energy
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