94644
Description
Mind Map by ssheldrake, updated more than 1 year ago
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Created by ssheldrake
about 11 years ago
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AS P1 Topics
- Buoyancy
- Buoyancy occurs due to density of solid < density of liquid
- Upthrust = Weight + Drag
- 4/3 π r^3 ρ (fluid) = M(sphere) g + 6π η r v
- 4/3 π r^3 ρ (fluid) = M(sphere) g + 6π η r v
- Upthrust = Weight + Drag
- Sinking occurs due to density of solid > density of liquid
- M(sphere) g = 4/3 π r^3 ρ (fluid) + 6π η r v
- Weight = Upthrust + Drag
- Weight = Upthrust + Drag
- M(sphere) g = 4/3 π r^3 ρ (fluid) + 6π η r v
- Density = Mass of material for given
volume: Kg/m^3
- Mass = Density x Volume
- Volume = Mass / Density
- Mass = Density x Volume
- For terminal velocity, F=ma = 0
- Can determine the viscosity using this!
- Can determine the viscosity using this!
- Stoke's law (viscous drag) = 6π η r v
- Boats
- Buoyancy occurs due to density of solid < density of liquid
- Resolution of vectors
- Trigonometry
- Sin(theta) = Opposite/Hypotenuse
- Cos(theta) = Adjacent/Hypotenuse
- Tan(theta) = Opposite/Adjacent
- Sin(theta) = Opposite/Hypotenuse
- Pythagoras
- C^2 = A^2 + B^2
- C^2 = A^2 + B^2
- Vectors can be resolved to
horizontal and vertical forces
- Trigonometry
- Materials
- Hooke's law
- F = -k x
- F = -k x
- Young modulus
- Elastic region: The linear part of a stress-strain graph. If a material is deformed in this area it will go back to its original dimensions
- Plastic region: The area where non-linear behaviour is seen on stress-strain graph. If this occurs then the material will remain deformed
- Elastic region: The linear part of a stress-strain graph. If a material is deformed in this area it will go back to its original dimensions
- Brittle: Very small region of plastic deformation before mechanical failure
- Ductile: Can be drawn into wires
- Malleable: Can be beaten into sheets and deformed
- Hooke's law
- Friction
- Resolution of vectors
- Resolution of vectors
- Projectile Motion
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