timestamps

• 0:00

  Field Forces Introduction

• 0:33

  Contact Force Examples

• 1:37

  Field Force Examples

• 2:40

  Fundamental Forces Overview

• 3:45

  Gravitational Field Concept

• 4:46

  Field Strength and Mass

• 5:50

  Field Distance Effects

• 7:22

  Acceleration Due to Gravity

• 7:54

  Treating g as Constant

• 10:30

  Newton's Gravity Insight

• 12:33

  Universal Gravitation Law

• 13:35

  Gravitation Equation Details

• 15:42

  Common Gravity Formula

• 16:43

  Deriving g from Equation

• 19:48

  Gravity on Other Planets

• 20:49

  Distance and Force Changes

• 23:55

  Rocket Weight Question

• 26:04

  Mass vs Weight Distinction

• 28:07

  Gravitational vs Inertial Mass

• 29:40

  Measuring Gravitational Mass

• 31:11

  Measuring Inertial Mass

• 33:14

  Hypothetical Planet Calculation

• 35:58

  Force Between Two People

• 39:09

  Spacecraft Free Body Diagram

• 42:14

  Labeling Gravitational Force

• 43:16

  Universal Law Application