Potential and kinetic energy 1

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Presentation transcript:

Potential and kinetic energy 1 PE=mgh m=mass g=gravitational acceleration 9.8 m/s2 h=height Conversion from potential to kinetic energy KE=mv2/2 v=speed

Gravitational potential energy

Forms of potential energy atomic E=mc2 mechanical chemical electrical

Forms of kinetic energy

Magnitude of energy 1 calorie = 4.18 joules

Energy and force Force = rate of change of momentum=mass x acceleration

Temperature K = C +273 F = 32 + 1.8 C

Density & pressure Pressure = force / unit area =density x temperature Density = mass / unit volume The ideal gas law :                                                            V = Volume; n = Number of moles; R = Universal gas constant; T = Absolute temperature; P = Absolute pressure

phases

Multiple phases

Temperature and heat Heat is flow of energy Temperature is average kinetic energy heat

Heat & phase transition Water holds more thermal Energy at lower temperature

density & energy

heat transport Conduction Convection Radiation

Mass transfer Diffusion, differentiation, & advection

Microscopic world

Atoms, proton, neutron, electron

Mass-energy Fission & Fusion

Atomic structure of hydrogen

Energy level of atoms

Fundamental forces of nature

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