Structures Mid-Term Grade 7

A structure is...

• Only something that is made by humans

• Something that has a definite shape and function

• Anything with a strong skeleton surrounded by flexible material

• Only something that is made by nature

Mountains, brick walls, and pyramids are all examples of

• Shell Structures

• Natural Structures

• Manufactured Structures

• Mass Structures

In class we used a triple beam balance to measure _____________ in grams, and a spring scale to measure ________________ in Newtons.

• mass, mass

• mass, gravity

• mass, weight

• weight, mass

A force is best described as a…

• Constant stress on a structure

• Newton

• Push or pull on an object that causes the object to move or change shape

• Thread that holds the universe together that can be controlled if it is with you

How a force impacts a structure depends on the:

• Magnitude (strength) of the force

• Direction of the force

• Location of the force on the object

• All of the above

A load is an example of what kind of a force

• Internal

• External

• Gravity

• Rigid

An internal force acts on the __________ of a structure, whereas an external force acts on the ___________ of a structure, respectively.

• inside, inside

• outside, outside

• inside, outside

• outside, inside

Gravity is an example of  ____________.

• an external force

• compression

• an internal force

• weight

Compression is caused by a _____________ on an object, and tension is caused by a ____________ on an object, respectively.

• push, pull

• pull, push

• push, push

• pull, pull

When the books caused the 3D shapes to fail during our strong shape lab, what type of internal force occurred?

• tension

• shear

• torsion

• compression