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Forces of nature Gravity force Free fall

CLASSICAL PHYSICS Gravity. Forces of nature Gravity force Free fall. Forces of nature. Gravity. Nuclear (Strong & Weak). Electromagnetism. Projectiles Planets Galaxies Universe. Nucleus Radioactivity Stars. Light Atoms Technology. Same rules everywhere in the universe.

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Forces of nature Gravity force Free fall

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  1. CLASSICAL PHYSICS Gravity • Forces of nature • Gravity force • Free fall

  2. Forces of nature Gravity Nuclear (Strong & Weak) Electromagnetism Projectiles Planets Galaxies Universe Nucleus Radioactivity Stars Light AtomsTechnology

  3. Same rules everywhere in the universe Gravity Force Attraction between objects with mass Increases with mass of object(s) Decreases with distance between objects

  4. Gravity Force (=> acceleration) • Constant Direction, increasing speede.g. Dollar Drop – How long for a $ bill to fall ½ its length? • Changing Direction, constant speed e.gGravity Orbit

  5. All objects free fall* with same acceleration (Galileo) Mass Inertial mass = Gravitational mass Source of gravity force Resistance to acceleration (F=ma) • *Free Fall • Only force of gravity, neglect air resistance, etc. • Constant acceleration g = 9.8 m/s²

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