# Physics

Mind Map by , created over 6 years ago

## GCSEs Physics Mind Map on Physics, created by Katherine Russell on 05/20/2013.

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 Created by Katherine Russell over 6 years ago
Using GoConqr to study science
GCSE AQA Physics 1 Energy & Efficiency
Waves
Resumo para o exame nacional - Fernando Pessoa Ortónimo, Alberto Caeiro , Ricardo Reis e Álvaro Campos
OCR Physics P4 Revision
Forces and motion
Physics P1
Physics Review!
GCSE AQA Physics - Unit 3
AQA Physics P1 Quiz
Physics
1 Energy Transfer
1.1 Types of Energy
1.1.1 Chemical Kinectic Nuclear Electric Thermal Radient Sound Potential- Gravitational Elastic
1.2 Sankey Diagrams
1.2.1 Total Energy input= Wasted energy+ Useful energy
1.2.2 Wasted energy line goes down
1.2.3 Useful energy line goes straight across
1.2.4 efficiency= useful energy output/ total energy input
1.3 Conduction
1.3.1 Heat energy is conducted from the hot end to the cold end by atoms bumping into each other
1.3.2 Metals are good conductors
1.3.2.1 have many free moving electrons
1.4 Convection
1.4.1 Warmer, less dense liquid rises and hotter, more dense liquid falls causing a convection current
1.4.2 Happens in liquids and gasses
1.4.3 E.g in a room a radiator causes a convection current
1.5.1 When the heats hits an object some of it is absorbed and makes the molecules vibrate causing the object to heat up
1.5.2 Matt Black is a good radiator
1.6 Insulators
1.6.1 Dont let heat through them
1.6.1.1 Opposite to Conductors
2 Energy Resources and Generation
2.1 Fossil fuels
2.1.3 Non-renewable
2.2 Nuclear
2.2.1 Advantage: does not produce CO2
2.2.3 Non-renewable
2.3 Wind
2.3.1 Advantage: renewable + non polluting
2.4 Solar+tidal+wave
2.4.2 Disadvantage: not when night or cloudy
2.5 Hydroelectric
2.6 Conversions
2.6.1 FF= Chemical- Thermal- Kinetic- Electrical
2.6.2 Nuc= Nuclear- Thermal- Kinetic- Electrical
2.6.3 W+W+T= Kinetic - Electrical
2.6.4 Solar= Light- Electrical
2.6.5 Geo=Heat-Kinetic- Elecrtical
2.6.6 Hydro= Gravitational Potential- Kinetic- Electrical
3 Density and Pressure
3.1 Density
3.1.1 Equations
3.1.1.1 Density= Mass/Volume
3.1.1.2 Regular shapes: volume= l x w x h
3.1.1.3 Liquids: mass liquid in cylinder - mass of cylinder
3.1.1.4 Irregular shapes: difference in level of water after input of object
3.2 Pressure
3.2.1 Equations:
3.2.1.1 Pressure= Force/ Area
3.2.1.2 Liquids: Pressure= Density x 10 or 9.8 x depth
3.2.2 Pressure in Liquids acts in ALL directions
4 Change of State
4.1 Three states of matter
4.1.1 Solids
4.1.2 Liquids
4.1.3 Gases
4.2 Brownian motion
4.2.1 Seemingly random movement of particles suspended in a liquid or a gas. it is caused by the small molecules colliding into the other particles and because they are so light the particles twist and jerk
5 Electrical Charges
5.1 Metals= gd conductors Glass + Plastic= insulators some things can be rubbed together to create a charge
5.2 Charge attractions
5.2.1 Like charges repel
5.2.2 Opposite charges attract
5.2.3 Charged and neutral attract
5.3 Electrostatic precipitators
5.3.1 Smoke precipitators
5.3.2 B+W photocopiers
5.3.3 Spray painting
5.3.4 Fueling aircraft and petrol stations
6 Waves
6.1 2 Types
6.1.1 Longditudinal
6.1.1.1 Oscilation and energy are parallel to eachother
6.1.1.2 e.g Sound
6.1.1.3 Vibrates in same direction as length
6.1.2 Transverse
6.1.2.1 e.g Light
6.1.2.2 Oscilation and energy are right angles to eachother
6.1.2.3 Moves perpindicular
6.2 Details
6.2.1 Amplitude= height
6.2.2 Trough= bottom Peak= top
6.2.3 Wavelength= distance between
6.2.4 Frequency= no. waves
6.3 Equations
6.3.1 Time= 1/ frequency
6.3.2 Wave speed= frequency x wavelength