Study

Forces Acting on Structures

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  • The water temperature needs to be at least _____ for a coastal storm to form
    26.5 degrees Celsius
  • What was the environmental external force that hit Japan in 2011?
    Tsunami
  • What is the best set-up for a structure? Low/High centre of gravity - Wide/Narrow base - Wide/Narrow Top
    LOW centre of gravity - Wide Base - Narrow Top
  • What are the three properties of a strong material?
    Strong, Flexible, Durable
  • True OR False - the centre of gravity can be shifted
    True
  • Correct this sentence: Gravity is a weak contact force
    Gravity is a strong non-contact force
  • Name two famous well built structures
    Answers will vary
  • Bouncing a basketball is an example of a _____ force.
    Contact
  • What is the strongest shape for construction?
    Triangles
  • Gravity is an example of a ____ force.
    Non-Contact
  • What are the four classifications of a structure?
    Holds a load, Has a shape, Has a size, Has a purpose
  • Tell me the name of the "calmer" part of the tornado"
    Eye
  • What are the names of the three tropical storms?
    Hurricane, Cyclone, Typhoon
  • Hitting a golf ball is an example of a ____ force.
    Push Force
  • List three of the five internal forces that we discussed
    Tension, Compression, Bend, Shear, Torsion
  • Fill in the blank: A _____ force happens when an object is brought closer.
    Pull
  • The students and staff moving through the school is an example of a ____ load.
    Live
  • Fill in the blank: A ____ force happens when an object is moved away.
    Push
  • What is one of the strongest materials that should be used when building homes?
    Concrete
  • True OR False: a push and pull force can occur at the same time
    True
  • Tornados are caused by the movement of ____ and ____ air
    Warm and Cold
  • Fill in the blank: A _____ is any push or pull that causes an object to move
    Force
  • A soccer net is a _____ load.
    Dead
  • Lightning will strike the _____ point that has an opposite charge
    Tallest
  • A tow truck towing a car is an example of a ___ force.
    Pull Force