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Science L6 Gravity Tides and Planets

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  • What is mass? How much something weighs OR the forces on that object
    How much something weighs
  • What keeps the moon in orbit around the earth?
    Gravitational pull between the 2 objects
  • Accretion is how more material is added for an object to become larger. True or false
    True
  • Where would you weigh more? At the equator or at the poles?
    Poles
  • What is very high and very low tide called?
    Neap tide and Spring tide
  • Is your mass different on Mars or the Moon?
    No
  • What is weight? How much something weighs OR the force on that object
    Force
  • Why do we need to know when tides happen?
    Ships can predict tides so they know where to sail
  • As an object increases in size, does its gravity increase or decrease?
    Increase gravity
  • Is earth a perfect sphere?
    No
  • How many tides in 24 hours? How many low and how many high tides? Is it 4 or 6 or 2
    2 and 2 makes 4 tides in a day
  • What causes tides of the sea?
    Gravitational pull of the moon
  • Gravity is the force of _____________. space OR attraction
    Atrraction
  • What gives earth its bulging shape at the sides? Gravitational force OR centrifugal force?
    Centrifugal
  • What 2 factors affect gravitational force? Mass and distance OR mass and time
    Mass and distance
  • What is the center of mass of an object? Where gravity comes from OR where gravity is going to
    Going to
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