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Physics
Revision Notes
Paper 4
Physics · Cambridge 9702
Paper 4
15 chapters · 177 lessons
Collection
AS theory
Paper 4
Expand all
01
Motion in a Circle
13 lessons · 3 topic areas
01
Kinematics of Uniform Circular Motion
3 lessons
Circular Motion & Radians
Angular Speed
Linear Speed, Wheels & Gears
02
Centripetal Acceleration
2 lessons
Why Circular Motion Accelerates
Calculating Centripetal Acceleration
03
Forces in Circular Motion
8 lessons
Centripetal Force
How Circular Motion Changes
The Real Inward Force
Resolving Forces in Circular Motion
A Ball Inside a Smooth Cone
Conical Pendulum
Banked Roads & Aircraft
Circular Motion at a Latitude
02
Gravitational Fields
17 lessons · 4 topic areas
01
Fields & Newton's Law
7 lessons
Gravity and Gravitational Fields
Gravitational Field Lines
Newton's Law of Gravitation
Gravitational Field Strength
Field Strength of a Point Mass
Combined Gravitational Fields
Finding a Zero-Field Point
02
Potential & Energy
4 lessons
Gravitational Potential
Gravitational Potential Energy
Gravitational Energy Changes
Energy to Escape a Gravitational Field
03
Field & Potential Graphs
2 lessons
Gravitational Field Strength Graphs
Gravitational Potential Graphs
04
Orbits
4 lessons
Circular Orbits
Orbital Period & Kepler's Third Law
Orbital Period Graphs
Geostationary Orbits
03
Temperature
7 lessons · 4 topic areas
01
Thermal Transfer and Equilibrium
1 lesson
Thermal Energy Transfer and Equilibrium
02
Measuring Temperature
2 lessons
Thermometers and Thermometric Properties
Thermodynamic Temperature
03
Specific Heat Capacity
2 lessons
Specific Heat Capacity
Thermal Energy Sharing
04
Specific Latent Heat
2 lessons
Specific Latent Heat
Latent Heat Calculations
04
Ideal Gases
10 lessons · 2 topic areas
01
The Mole & the Gas Equation
5 lessons
Amount of Substance and the Mole
Boyle's Law and Charles's Law
The Equation of State
Counting Molecules: pV = NkT
Reading a pV against kT Graph
02
Kinetic Theory of Gases
5 lessons
The Kinetic Model of a Gas
How Molecules Cause Pressure
Temperature and Mean Kinetic Energy
Root-Mean-Square Speed
R.M.S. Speed Relationships
05
Thermodynamics
8 lessons · 3 topic areas
01
Internal Energy
1 lesson
Internal Energy
02
The First Law
3 lessons
The First Law of Thermodynamics
Work During a Volume Change
Work from a Pressure-Volume Graph
03
First-Law Applications
4 lessons
Applying the First Law
Using the Process Condition
First-Law Tables
Pressure-Volume Paths and Cycles
06
Oscillations
10 lessons · 3 topic areas
01
Describing Oscillations
7 lessons
Oscillations: Start Here
Period, Frequency and Angular Frequency
Phase Difference and Amplitude
What Makes Motion Simple Harmonic?
SHM as a Circular Projection
SHM Equations and Graphs
Speed and Acceleration in SHM
02
Energy of Oscillations
1 lesson
Energy in Simple Harmonic Motion
03
Damping and Resonance
2 lessons
Damping
Forced Oscillations and Resonance
07
Electric Fields
12 lessons · 3 topic areas
01
Electric Field Foundations
4 lessons
Electric Fields: Start Here
Drawing Electric Field Lines
Uniform Electric Fields
Charged-Particle Motion in a Uniform Field
02
Point Charges
4 lessons
Coulomb's Law
Charged Spheres in Equilibrium
The Field of a Point Charge
Combining Electric Fields
03
Electric Potential
4 lessons
Electric Potential
Electric Potential Energy
Field Strength from Potential
Zero Potential and Zero Field
08
Capacitance
10 lessons · 3 topic areas
01
Capacitor Foundations
4 lessons
Capacitance: Start Here
Capacitance of an Isolated Conductor
How a Capacitor Stores Energy
Calculating Capacitor Energy
02
Capacitor Networks
3 lessons
Capacitors in Series and Parallel
Reducing Capacitor Networks
Charge Sharing
03
Capacitor Discharge
3 lessons
Why Capacitor Discharge Slows Down
Capacitor Time Constant
Using the Discharge Equation
09
Magnetic Fields
12 lessons · 3 topic areas
01
Magnetic Field Foundations
3 lessons
Magnetic Fields: Start Here
Field Around a Straight Wire
Fields of Coils and Solenoids
02
Forces on Currents
2 lessons
Force on a Current
Forces Between Parallel Wires
03
Moving Charges
7 lessons
Force on a Moving Charge
Charged Particles in Circles
Period of a Charged Particle
The Velocity Selector
Velocity Selector Calculations
The Hall Effect
Using a Hall Probe
10
Electromagnetic Induction
10 lessons · 3 topic areas
01
Induction Foundations
4 lessons
Electromagnetic Induction: Start Here
Induction Experiments and E.m.f. Size
Magnetic Flux
Magnetic Flux Linkage
02
Faraday's Law
3 lessons
Faraday's Law
Motional E.m.f.
From Flux Graphs to E.m.f. Graphs
03
Direction & Applications
3 lessons
Lenz's Law
Eddy Currents and Braking
Rotating Conductors and Generators
11
Alternating Currents
12 lessons · 3 topic areas
01
Alternating Current Foundations
3 lessons
Alternating Current: Start Here
Reading an a.c. Graph
Sinusoidal a.c. Equations
02
r.m.s. Values & Power
4 lessons
What r.m.s. Means
Calculating r.m.s. Values
The a.c. Power Waveform
Mean Power in a Resistive Load
03
Rectification & Smoothing
5 lessons
Half-wave and Full-wave Outputs
The Single-diode Rectifier
Bridge Rectifier
How Smoothing Works
Smoothing Calculations
12
Quantum Physics
15 lessons · 4 topic areas
01
Light as Quanta
5 lessons
What a Photon Is
Photon Energy and Electronvolts
Photon Intensity
Photon Rate
Photon Momentum and Radiation Force
02
Photoelectric Effect
5 lessons
What the Photoelectric Effect Is
Explaining Photoelectric Observations
The Photoelectric Equation
Threshold Frequency & Wavelength
Photoelectric Graphs and Stopping Potential
03
Matter Waves
2 lessons
Wave–Particle Duality and de Broglie Wavelength
Electron Diffraction
04
Atomic Spectra
3 lessons
Recognising Line Spectra
Atomic Energy Levels and Transitions
Explaining Line Spectra
13
Nuclear Physics
12 lessons · 3 topic areas
01
Nuclear Reactions
3 lessons
Nuclear Equations
Mass–Energy Equivalence
Calculating Nuclear Reaction Energy
02
Mass & Binding Energy
4 lessons
Mass Defect & Binding Energy
The Binding-Energy Curve
Fusion & Fission
Why Fusion and Fission Release Energy
03
Radioactive Decay
5 lessons
Evidence for Random Decay
Random & Spontaneous Decay
Activity & Decay Constant
Half-Life & Exponential Decay
Using Radioactive-Decay Equations
14
Medical Physics
7 lessons · 3 topic areas
01
Ultrasound
3 lessons
How Ultrasound Builds an Image
Impedance, Reflection & Gel
Ultrasound Attenuation
02
X-ray Imaging
3 lessons
X-ray Production & Minimum Wavelength
X-ray Attenuation & Contrast
Computed Tomography
03
PET Imaging
1 lesson
PET Scanning
15
Astronomy & Cosmology
7 lessons · 3 topic areas
01
Stars & Distance
2 lessons
Luminosity & Radiant Flux
Standard Candles & Distance
02
Stellar Properties
2 lessons
Stellar Temperature from a Spectrum
Stellar Radius from Luminosity
03
The Expanding Universe
3 lessons
Redshift & Recession Speed
Hubble's Law
Expansion & the Big Bang
R
Definitions
15 lessons · 1 topic areas
01
A Level Definitions
15 lessons
Motion in a Circle
Gravitational Fields
Temperature
Ideal Gases
Thermodynamics
Oscillations
Electric Fields
Capacitance
Magnetic Fields
Electromagnetic Induction
Alternating Currents
Quantum Physics
Nuclear Physics
Medical Physics
Astronomy and Cosmology
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Physics
AS & A Level · 9702
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