Interactive Lesson • 12 mins

Planetary Gravity & Free-Fall Acceleration

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📖 Introduction

Why Does Everything Fall Down?

Explanation Level:⚡ Junior Scholar (Ages 12 to 14)

Curriculum Stage:🇬🇧 Key Stage 3 (Years 7 to 9)🇺🇸 Middle School (NGSS MS-PS2 and MS-PS3)🇨🇦 Grades 7 and 8 STEM🇳🇬 Junior Secondary JSS 1 to 3

Every mass pulls on every other mass in the universe. On Earth, the entire planet pulls everything towards its centre with a steady acceleration of roughly 9.8 metres per second every second.