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10530673
HSC Scientists
Description
All scientists in the HSC Physics syllabus.
No tags specified
physics
hsc
scientists
physics
year 11
Mind Map by
Thomas Lewis
, updated more than 1 year ago
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Created by
Thomas Lewis
almost 7 years ago
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Resource summary
HSC Scientists
Galileo
Analysed projectile motion
Parabolic motion
Seperate vertical and horizontal component
Kepler
Kepler's law of periods
Heliocentric model proven
Orbits were elliptical
Orbits could could be analysed and predicted
Newton
Laws of motion
Universal law of gravitation
Full understanding and analysis of motion
Understanding of motion of celestial bodies
Michelson and Morley
Relative speed of earth through the Aether
Experiment
Null result fuelled scepticism for Aether model
Einstein
Special relativity
C is constant, time and space are relative
E = m c^2
Energy and mass equivalent
C is universal speed limit
Length, time and mass dilation
Explanation of photoelectric effect
Wave - particle duality of light
De Broglie's theory's
Photo and solar cell development
Faraday
Electromagnetic induction
Change in magnetic flux in conductor creates produces EMF
Electricity / electric motors/generators
Lenz
Lenz's Law
Induced currents flow in a direction that create a magnetic field that opposes the motion that cause the change in flux
J.J. Thompson
Discovered electron
Experiment
Cathode rays have rays
First insight into atomic structure
Hertz
Radio waves
Speed of light
Wireless technology
Experiment
Light part of bigger spectrum
Plank
Quantised energy
Solved UV catastrophe
Rutherford
Nucleus
Dense, positive
Mostly empty space
Further insight atomic structure
Experiment
Braggs
X-ray diffraction crystallography
Arrangement of atoms in crystal
Sea of electrons
Experiment
Bohr
Bohr's postulates
Electrons only in fixed orbits (positions and energy), quantised, no radiation emitted.
Release/absorb energy when moving shells
Angular momentum is quantised
Davison and Germer
Proof of De Broglie
De Broglie
Wave-particle of matter
Only at quantum level
Stability of electron orbits
Heisenberg
Uncertainty principle
Particle wave duality means impossible to know everything about any particle at any moment
Chadwick
Discovered neutron
Conservation of energy
Pauli
Exclusion principle
No two electrons in an atom can have identical quantum numbers
Neutrino/anti - neutrino
Reason for varying energy levels in beta emissions
Further standard model of matter
Fermi
Discovered fission
Formed transuranic elements
Controlled nuclear fission
Bohr
Quanta to atomic model
Analysis
Electrons in certain orbits and energy levels, quantised and doesn't;t emit energy
When moving orbits, release or absorb quantum of energy
Angular motion is quantised, mvr = nh/2pi
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