The Earth (6.1.1) | Cambridge IGCSE (9–1) Physics 0972 (Extended) (2026–2028) | KnowledgeSet

The Earth

Physics · IGCSE · Cambridge · Cambridge IGCSE (9–1) Physics 0972 (Extended) (2026–2028) · Specification point · 6.1.1 · Space physics · The Earth and the Solar System

Earth's rotation and the day–night cycle

Earth's orbit and the seasons

The Moon's phases

Average orbital speed

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Learning Objectives

6.1.1 The Earth

Core	Supplement
$1 Know that the Earth is a planet that rotates on its axis, which is tilted, once in approximately 24 hours, and use this to explain observations of the apparent daily motion of the Sun and the periodic cycle of day and night 2 Know that the Earth orbits the Sun once in approximately 365 days and use this to explain the periodic nature of the seasons 3 Know that it takes approximately one month for the Moon to orbit the Earth and use this to explain the periodic nature of the Moon’s cycle of phases$	$v = \frac{2\pi r}{T}$

Core

Supplement

1 Know that the Earth is a planet that rotates on its axis, which is tilted, once in approximately 24 hours, and use this to explain observations of the apparent daily motion of the Sun and the periodic cycle of day and night 2 Know that the Earth orbits the Sun once in approximately 365 days and use this to explain the periodic nature of the seasons 3 Know that it takes approximately one month for the Moon to orbit the Earth and use this to explain the periodic nature of the Moon’s cycle of phases

v = \frac{2\pi r}{T}