topics = [
    '1.1',
    '1.2',
    '1.3',
    '1.4',
    '1.5',
    '1.6',
    '1.7',
    '1.8',
    '2.1',
    '2.2',
    '2.3',
    '3.1',
    '3.2',
    '3.3',
    '3.4',
    '4.1',
    '4.2',
    '4.3',
    '4.4',
    '4.5',
    '5.1',
    '5.2',
    '6.1',
    '6.2',
]

topics_full = {
    '1': 'Motion, forces and energy',
    '1.1': 'Physical quantities and measurement techniques',
    '1.2': 'Motion',
    '1.3': 'Mass and weight',
    '1.4': 'Density',
    '1.5': 'Forces',
    '1.6': 'Momentum',
    '1.7': 'Energy, work and power',
    '1.8': 'Pressure',
    '2': 'Thermal physics',
    '2.1': 'Kinetic particle model of matter',
    '2.2': 'Thermal properties and temperature',
    '2.3': 'Transfer of thermal energy',
    '3': 'Waves',
    '3.1': 'General properties of waves',
    '3.2': 'Light',
    '3.3': 'Electromagnetic spectrum',
    '3.4': 'Sound',
    '4': 'Electricity and magnetism',
    '4.1': 'Simple phenomena of magnetism',
    '4.2': 'Electrical quantities',
    '4.3': 'Electric circuits',
    '4.4': 'Electrical safety',
    '4.5': 'Electromagnetic effects',
    '5': 'Nuclear physics',
    '5.1': 'The nuclear model of the atom',
    '5.2': 'Radioactivity',
    '6': 'Space physics',
    '6.1': 'Earth and the Solar System',
    '6.2': 'Stars and the Universe',
}