What is gravity?, The force that brings everything back to earth., What is air friction?, Friction between air and a moving object, What is escape velocity?, Speed to escape gravitational pull, What happens to gravitational pull then 2 objects are closer together?, They have more gravitational pull, What does gravity depend on?, Mass and distance, What happens to gravity when 2 objects are further apart?, They have less gravitational pull, Does the shape of an object affect how fast it falls?, Yes but only because of air resistance on earth., Does the weight of an object affect how fast it falls?, No they will all fall at the same speed, If you throw some thing will it come down?, Yes it will because what goes up must come down, If there is no gravity can we survive?, no gravity=no life, Is there an attraction to everything made of matter?, There is an attraction to everything made of matter towards each other, Does it matter where something is?, No matter where everything will be pulled to the center of the earth, What happens to the gravitational pull when an object has more mass?, Greater the mass=more gravitational pull, How old is the moon?, 4.53 billion years old, How was the moon formed?, A mars sized planet crashed into earth and rocks from earth clustered together forming the moon, How much of earths mass does the moon have?, 1-81 of earths mass, moon is the _ natural satilite, 5, what country does the moon have the width of?, China, why don't we see the back of the moon?, The moon rotates at the same rate as it revolves, How many phases does the moon have?, 8 lunar phases, What is a natural satellite?, An object that orbits a bigger object, Size and mass, 1/4 of earths mass, less gravity, Atmosphere, No atmosphere, wind or weather, Tempature, 120 degrees-day, -130 degrees-night, Craters, holes on the moons surface, Maria, large, smooth, dark surfaces on the moons surface, made from ancient lava flows, Highlands, light, lots of craters, mountains, older and higher than maria, Regolith, gray, dust, rocks, thin layer, How long does it take the moon to revolve around the sun, 28 days.

Gravity Flashcards

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