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