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Science Midterm

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  • List two ways that people use pressurised air.
    tires- drive smoothly. Scuba tanks- Breathe under water
  • Name the 6 stages of the water cycle that we have looked at.
    Evaporation, Transpiration, Condensation, Precipitation, Infiltration, Runoff
  • What is water resistance?
    Friction between a moving object and water.
  • What is the formula to work out pressure?
    pushing force / area
  • What is an unbalanced force?/
    two or more forces of equal strength acting on an object in opposite directions. NO MOVEMENT
  • Spell...
    precipitation
  • ___________- Some water is held in lakes and ponds, or seeps into the ground and is stored as groundwater.
    Infiltration
  • Air pressure increases the higher you go in the atmosphere. True or false?
    False
  • In which picture is the highest pressure on the floor?
    d
  • How can you increase the friction between two objects?
    Change the surface (rough). Change the weight (heavier)
  • What is an unbalanced force?
    The forces are not equal. The force creates movement,
  • What is air resistance?
    Friction between a moving object and air.
  • Water vapour is given off by plants in the process of _________.
    transpiration
  • Why does the water in the bottom hole move out further?
    It has the highest water pressure. The weight of the water above is pressing down.
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