6.1.1 The Earth
- Syllabus
- 0625–2026–2027
- Topic
- 6.1.1
- Level
- —
6.1.1.1—Earth rotates on its tilted axis once
- Know the Earth rotates on its tilted axis once in about 24 hours; use this to explain the Sun’s apparent daily motion and the day/night cycle
6.1.1.2—Earth orbits the Sun once in
- Know: the Earth orbits the Sun once in approximately 365 days and use this to explain the periodic nature of the seasons
6.1.1.3—It takes approximately one month for
- Know: 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
6.1.1.4—Average orbital speed
- Define average orbital speed; recall/use: v = 2πr/T, where r is average orbital radius and T is orbital period
Objective notes
4 learning objectivesConceptIGCSE Physics