Specification points
Edexcel International AS and A level Physics XPH11/YPH11
194 points in 6 topics, with Edexcel's codes and titles.
Grade boundaries·Edexcel command words
Codes and titles are read by a script from Edexcel's published specification and have not been checked by a person. What each point covers is in the specification itself: Edexcel’s specification.
U1 Mechanics and Materials
- U1.3 Mechanics
- 1 Equations of uniformly accelerated motion
- 2 Displacement-, velocity- and acceleration-time graphs
- 3 Slopes and areas of motion graphs
- 4 Scalar and vector quantities
- 5 Resolving vectors into components
- 6 Resultant of two coplanar vectors
- 7 Independence of vertical and horizontal motion in projectiles
- 8 Free-body force diagrams
- 9 Newton's first and second laws
- 10 Gravitational field strength and weight
- 11 Core practical 1: acceleration of a freely-falling object
- 12 Newton's third law
- 13 Momentum
- 14 Conservation of linear momentum
- 15 Moment of a force
- 16 Centre of gravity and the principle of moments
- 17 Work done by a force
- 18 Kinetic energy
- 19 Gravitational potential energy near the Earth's surface
- 20 Conservation of energy
- 21 Power, time and energy transferred
- 22 Efficiency
- U1.4 Materials
- 23 Density
- 24 Upthrust
- 25 Viscous drag and Stokes' law
- 26 Core practical 2: viscosity by a falling-ball method
- 27 Hooke's law and stiffness
- 28 Stress, strain and the Young modulus
- 29 Force-extension graphs and elastic and plastic deformation
- 30 Stress-strain graphs and breaking stress
- 31 Core practical 3: Young modulus of a material
- 32 Elastic strain energy
U2 Waves and Electricity
- U2.3 Waves and Particle Nature of Light
- 33 Amplitude, frequency, period, speed and wavelength
- 34 The wave equation
- 35 Longitudinal waves
- 36 Transverse waves
- 37 Graphs of transverse, longitudinal and standing waves
- 38 Core practical 4: speed of sound in air
- 39 Wavefront, coherence, path difference, superposition and interference
- 40 Phase difference and path difference
- 41 Standing waves, nodes and antinodes
- 42 Speed of a transverse wave on a string
- 43 Core practical 5: frequency of a vibrating string
- 44 Intensity of radiation
- 45 Refraction and refractive index
- 46 Critical angle
- 47 Predicting total internal reflection
- 48 Measuring the refractive index of a solid
- 49 Plane polarisation
- 50 Diffraction and Huygens' construction
- 51 The diffraction grating equation
- 52 Core practical 6: wavelength of light with a diffraction grating
- 53 Electron diffraction and wave nature of electrons
- 54 The de Broglie equation
- 55 Transmission and reflection at an interface
- 56 Pulse-echo techniques
- 57 Wave and photon models of electromagnetic radiation
- 58 Photon energy and frequency
- 59 Photon absorption and photoelectron emission
- 60 Threshold frequency, work function and the photoelectric equation
- 61 The electronvolt
- 62 Photoelectric effect as evidence for photons
- 63 Atomic line spectra and energy levels
- U2.4 Electric Circuits
- 64 Electric current as rate of flow of charge
- 65 Potential difference
- 66 Resistance and Ohm's law
- 67 Current and potential difference in circuits
- 68 Resistors in series and parallel
- 69 Electrical power and energy equations
- 70 Current-potential difference graphs for components
- 71 Resistivity
- 72 Core practical 7: electrical resistivity of a material
- 73 The equation I = nqvA and resistivity
- 74 Potential along a uniform current-carrying wire
- 75 Potential divider circuits
- 76 Potential dividers with thermistors and LDRs
- 77 E.m.f. and internal resistance
- 78 Core practical 8: e.m.f. and internal resistance of a cell
- 79 Resistance and temperature
- 80 Resistance and illumination in LDRs
U3 Practical Skills in Physics I
U4 Further Mechanics, Fields and Particles
- U4.3 Further Mechanics
- 81 Impulse and change of momentum
- 82 Core practical 9: force and change of momentum
- 83 Conservation of momentum in two dimensions
- 84 Core practical 10: analysing collisions with ICT
- 85 Elastic and inelastic collisions
- 86 Kinetic energy of a non-relativistic particle from momentum
- 87 Angular displacement in radians and degrees
- 88 Angular velocity
- 89 Centripetal acceleration
- 90 Centripetal force and circular motion
- 91 Equations for centripetal force
- U4.4 Electric and Magnetic Fields
- 92 Electric fields
- 93 Electric field strength
- 94 Coulomb's law
- 95 Electric field of a point charge
- 96 Electric field and electric potential
- 97 Electric field between parallel plates
- 98 Electric potential in a radial field
- 99 Field lines and equipotentials
- 100 Capacitance
- 101 Energy stored by a capacitor
- 102 Charge and discharge curves and the time constant
- 103 Core practical 11: charging and discharging a capacitor
- 104 Exponential discharge equations
- 105 Magnetic flux density, flux and flux linkage
- 106 Force on a moving charge in a magnetic field
- 107 Force on a current-carrying conductor
- 108 Induced e.m.f. from relative motion of coil and magnet
- 109 Induced e.m.f. from changing current in a linked coil
- 110 Faraday's and Lenz's laws
- U4.5 Nuclear and Particle Physics
- 111 Nucleon number and proton number
- 112 Alpha particle scattering and the nuclear model
- 113 Thermionic emission
- 114 Particle accelerators and detectors
- 115 Radius of a charged particle's path in a magnetic field
- 116 Conservation laws and particle tracks
- 117 High energies to probe nucleon structure
- 118 Mass-energy equivalence in creation and annihilation
- 119 Energy and mass units in particle physics
- 120 Relativistic increase in particle lifetime
- 121 The standard quark-lepton model
- 122 Particles and antiparticles
- 123 Conservation of charge, baryon number and lepton number
- 124 Particle equations
U5 Thermodynamics, Radiation, Oscillations and Cosmology
- U5.3 Thermodynamics
- 125 Specific heat capacity and specific latent heat
- 126 Core practical 12: calibrating a thermistor as a thermostat
- 127 Core practical 13: specific latent heat of a phase change
- 128 Internal energy
- 129 Absolute zero and molecular kinetic energy
- 130 The ideal gas equation pV = NkT
- 131 Core practical 14: pressure and volume of a gas
- 132 Kinetic theory and mean molecular kinetic energy
- U5.4 Nuclear Decay
- 133 Nuclear binding energy and mass deficit
- 134 The atomic mass unit
- 135 Fusion, fission and binding energy per nucleon
- 136 Conditions for nuclear fusion
- 137 Background radiation
- 138 Properties of alpha, beta and gamma radiation
- 139 Nuclear equations
- 140 Core practical 15: absorption of gamma radiation by lead
- 141 Spontaneous and random nature of nuclear decay
- 142 Half-life and radioactive decay equations
- U5.5 Oscillations
- 143 Condition for simple harmonic motion
- 144 Equations of simple harmonic motion
- 145 Mass-spring systems and simple pendulums
- 146 Displacement-time graphs for oscillations
- 147 Velocity-time graphs for oscillations
- 148 Resonance
- 149 Core practical 16: unknown mass from resonant frequencies
- 150 Energy in damped and undamped oscillations
- 151 Free and forced oscillations
- 152 Forced oscillations, natural frequency and damping
- 153 Damping and plastic deformation
- U5.6 Astrophysics and Cosmology
- 154 Gravitational fields
- 155 Gravitational field strength
- 156 Newton's law of universal gravitation
- 157 Gravitational field of a point mass
- 158 Gravitational potential in a radial field
- 159 Electric and gravitational fields compared
- 160 Orbital motion
- 161 Black body radiation
- 162 The Stefan-Boltzmann law
- 163 Wien's law
- 164 Intensity and luminosity
- 165 Trigonometric parallax
- 166 Standard candles
- 167 The Hertzsprung-Russell diagram
- 168 The Hertzsprung-Russell diagram and stellar life cycles
- 169 The Doppler effect
- 170 Redshift and Hubble's law
- 171 Age and fate of the universe