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PASS Content Standard 2.2 Gravitation is a universal force that each mass exerts on any other mass.
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The force of attraction between all objects in the universe. The force of attraction between all objects in the universe.
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Gravitation - 3 min
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The weakest of the known natural forces. The weakest of the known natural forces.
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Only becomes obvious when massive objects like stars and planets are involved. Only becomes obvious when massive objects like stars and planets are involved.
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Gravity - 4 min
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Near the surface of the earth, gravity accelerates all objects at a rate of Near the surface of the earth, gravity accelerates all objects at a rate of 9.8 m/s 2
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Near the surface of the earth, gravity accelerates all objects at a rate of Near the surface of the earth, gravity accelerates all objects at a rate of 32 ft/s 2
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Terminal Velocity the point at which air resistance offsets the weight of a falling object, stopping its acceleration.
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Any object thrown through the air is a projectile.
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All projectiles have two velocities.
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Horizontal and Vertical velocities are separate.
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Horizontal and Vertical velocities are separate.
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A projectile's path is always curved.
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A projectile's path is always curved.
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Juggling - 3 min
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Orbital Motion Orbital Velocity Escape Velocity Sub-orbital Velocity
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What is an orbit - 2 min
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Sputnik The first man-made satellite was launched by Russia on October 4, 1957.
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40s and 50s Technology - 6 min
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Yury Gagarin - April 12, 1961
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Yury Gagarin - 3 min
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Alan Shepard - May 5, 1961
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Alan Shepard - 2 min
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Gus Grissom - July 21, 1961
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Gus Grissom - 2 min
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John Glenn - Feb 20, 1962
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John Glenn - 3 min
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Kepler’s Laws of Planetary Motion :
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Escape Velocity The velocity needed to escape the orbital gravity of a planet.
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For the Earth: 11.2 km/sec 25,000 mph 7 miles/sec Escape Velocity
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For the Moon - 2.4 km/sec For the Sun - 618 km/sec Escape Velocity
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Newton’s Law of Universal Gravitation All objects in the universe attract each other by the force of gravity.
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In what year did man first walk on the moon? In what year did man first walk on the moon?
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1969 In what year did man first walk on the moon? In what year did man first walk on the moon?
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To The Moon - 17 min
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Lunar Lander - 2 min
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In what year was the first shuttle flight? In what year was the first shuttle flight?
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1981 In what year was the first shuttle flight? In what year was the first shuttle flight?
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The Space Shuttle - 11 min
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The Countdown - 14 min
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The Astronauts - 11 min
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The Payload - 9 min
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Skateboards - 3 min
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Matter is NEVER weightless
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weight = m X g
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m = mass in kilograms g = 9.8 m/s 2 Units of weight are Newtons
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