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Unit Two
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Unit Two
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October 2017
October 2017
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Announcements
Definitions
The wave equation
Longitudinal waves
Transverse waves
Graphs of transverse and longitudinal waves
Further definitions
Phase difference and path difference
Stationary waves
Speed of a transverse wave on a string
Intensity of radiation
Refractive index and Snell’s law
Critical angle
Total internal reflection
Measuring the refractive index of a solid material
Plane polarisation
Diffraction and Huygens’ construction
Diffraction grating equation
Electron diffraction as evidence for the wave nature of electrons
de Broglie relation
Wave behaviour at an interface
Pulse-echo technique
Wave model and photon model of electromagnetic radiation
Photon energy
Photoelectricity
Threshold frequency, work function and the photoelectric equation
Electronvolt
The photoelectric effect as evidence for the particle nature of EM radiation
Atomic line spectra
Electric current
Potential difference
Resistance
Charge conservation
Energy conservation
Combining resistances
Equations involving power
Current-voltage graphs
Resistivity
Range of resistivities
Potential along a uniform current-carrying wire
Potential divider circuits
Potential divider circuits with thermistors and LDRs
Electromotive force and internal resistance
Changes of resistance with temperature in metallic conductors and NTC thermistors
Changes of resistance with light intensity
Charge, Energy and Current
Diffraction
Intensity of Radiation
Photons
Potential Dividers, EMF and Internal Resistance
Refraction, Reflection and Polarisation
Resistance, Components and Resistivity
Waves
Waves on Strings
Waves
Ultrasound & Doppler Effect
Electricity
Resistor Networks
Resistivity
Internal Resistance
Quantum Physics
Photoelectric Effect
Energy Levels
Experiment Questions
Mixed unit 2
Waves
Electricity
Nature of Light
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Definitions
The wave equation
Longitudinal and transverse waves
Standing and stationary waves on a string
Further definitions
Phase and path difference
Stationary waves
Speed of a transverse wave on a string
Intensity of radiation
Refractive index and Snell's law
Total internal reflection and critical angle
Measuring the refractive index of a solid material
Plane polarisation
Diffraction and Huygens' construction
Diffraction grating
Electron diffraction as evidence for the wave nature of electrons
De Broglie relation
Wave behaviour at an interference
Pulse-echo technique
Wave and photon model of electromagnetic radiation
Photon energy
Photoelectricity
Threshold frequency , work function and the photoelectric equation
Electronvolt
The photoelectric effect as evidence for the particle nature of EM radiation
Atomic line spectra
Electric current
Potential difference
Resistance
Charge conservation
Conservation of energy
Combining resistances
Equations involving power
Current-voltage graphs
Resistivity
Range of resistivities
Potential along a uniform current-carrying wire
Potential divider circuits
Potential divider circuits with thermistors and LDRs
Electromotive force and internal resistance
Changes of resistance with temperature in metallic conductors
Changes of resistance with light intensity
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