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Movement and Energy

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  • The downward pull of gravity.
    Weight
  • A building is a good example of _______________.
    Equilibrium.
  • How fast something is moving, measured as the distance travelled in a unit of time.
    Speed
  • A condition where forces are balanced.
    Equilibrium
  • _______is the energy an object has due to its motion. As long as an object is moving at the same velocity, it will maintain the same _________. The ______of an object is calculated from the velocity and the mass of the object.
    Kinetic energy.
  • Speed of travel in a given direction.
    Velocity
  • The upward pressure of air on an aircraft when it is flying.
    Lift
  • The Force of the air that acts against the movement of an aircraft.
    Drag
  • The increase of velocity in a unit of time.
    Acceleration
  • ____________is the flow of tiny particles called electrons and protons. It can also mean the energy you get when electrons flow from place to place. ... Lightning is nothing but a large number of electrons flowing through air all at once.
    Electricity
  • "The train is going 120 kilimeters per hour straight ahead". This is an example of__________.
    Velocity
  • Negative acceleration ( or the decrease of velocity in a unit of time)
    Deceleration
  • The stored energy an object has because of its position or state. A bicycle on top of a hill, a book held over your head, and a stretched spring all have______________.
    Potential Energy
  • When a rocket takes off, ______________ occurs.
    acceleration
  • One of the most important instruments in a car tells you the car´s_____________.
    Speed
  • What is the name of the force produced by an engine that pushes a vehicle forward?
    Thrust