Lessons
Physics · 24 topics · 45 lessons
Physical quantities and measurement techniques: Measurement of length, volume and time, and Scalars and vectors.
Motion: Speed and velocity, Distance-time and speed-time graphs, and Acceleration and free fall.
Mass and weight: Mass, weight and gravitational field strength.
Density: Density and floating.
Forces: Effects of forces, Turning effect of forces, and Centre of gravity.
Momentum: Momentum, impulse and conservation.
Energy, work and power: Energy stores and transfers, Work, Energy resources, and Power.
Pressure: Pressure and pressure in liquids.
Kinetic particle model of matter: States of matter, Particle model, and Gases and the absolute scale of temperature.
Thermal properties and temperature: Thermal expansion of solids, liquids and gases, Specific heat capacity, and Melting, boiling and evaporation.
Transfer of thermal energy: Conduction, Convection, Radiation, and Consequences of thermal energy transfer.
General properties of waves: Wave motion and properties, and Reflection, refraction and diffraction.
Light: Reflection of light, Refraction of light, Thin lenses, and Dispersion of light.
Electromagnetic spectrum: regions, speed in vacuum, uses, hazards, satellites and digital signalling.
Sound: production, longitudinal nature, audible range, loudness + pitch, speed of sound, echoes and ultrasound.
Simple phenomena of magnetism: Magnets and magnetic fields.
Electrical quantities: Electric charge, Electric current, Electromotive force and potential difference, Resistance, and Electrical energy and electrical power.
Electric charge
Charges + friction + conductors · (HL) Electric field + patterns
Electric current and Electromotive force and potential difference
Electric current · e.m.f. + potential difference
Resistance and Electrical energy and electrical power
Resistance: R = V/I · Electrical energy + power
Electric circuits: Circuit diagrams and circuit components, Series and parallel circuits, and Action and use of circuit components.
Electrical safety: Mains hazards and protection.
Electromagnetic effects: Electromagnetic induction, The a.c. generator, Magnetic effect of a current, Force on a current-carrying conductor, The d.c. motor, and The transformer.
Electromagnetic induction and The a.c. generator
Electromagnetic induction · (HL) The a.c. generator
Magnetic effect of a current and Force on a current-carrying conductor
Magnetic effect of a current · Force on a current-carrying conductor
The d.c. motor and The transformer
The d.c. motor · The transformer
The nuclear model of the atom: The atom, and The nucleus.
Radioactivity: detection, the three types of nuclear emission, radioactive decay, half-life and safety precautions.
Detection of radioactivity
Background radiation + sources · Count rate + (HL) corrected count rate
The three types of nuclear emission
Nature, ionising effect + penetration of α/β/γ · (HL) Deflection in fields + ionising-effect explanation
Radioactive decay
Spontaneous + random decay, change of element · (HL) Decay equations + neutron→proton in β-decay
Half-life and safety precautions
Half-life definition + simple calculations · (HL) Half-life from data, applications + safety precautions
The Earth and the Solar System: Earth's rotation, orbit and Moon phases; the Sun, planets, accretion model, gravity and (HL) elliptical orbits.
Stars and the Universe: the Sun as a star, galaxies + the Milky Way + light-years; (HL) star life cycle; redshift + Big Bang; (HL) CMBR + Hubble + age of the Universe.