Structures and Forces

A

100

The Pyramids are an example of these 2 types of structures 

Manufactured and mass structures 

200

Some houses have flat roofs while others are slanted. Although they look different they have similar functions. Name at least 2 factors/conditions as to why you would choose one type over the other  

Climate and weather conditions  

Materials available 

Aesthetic 

Cost 

300

All structures can be placed into 4 different categories. 

what are the 4 different types of structures- include an example of each 

Mass- pyramids or sand dune 

shell - water bottle or snail shell 

frame - skeleton or bike 

combination - house (frame, shell)

400

where do we often find inspiration for our structures and designs 

in nature 

500

Name and identify a natural combination structure

answers will vary

B

100

What are the 4 types of internal forces

- torsion

- tension 

- compression

- shear 

200

What can be said about the center of gravity of an object if falls over after a light push.

The center of gravity is too high

300

Force is measured using this unit of measurement, and can be measured using this device 

Newton (N)

Spring scale 

400

A heavy wind blowing over a truck or a elephant walking across a bridge are an example of this type of force

External force

500

Arches, columns/pillars and beams are used in construction to ...

Resist internal and external forces applied to them

C

100

a joint that does not move is called a...

fixed joint

200

This happens when a structures shape is permanently changed 

deformation 

300

materials in construction are chosen for a variety of properties. What are 3 properties that are important to consider for structural stability.

Brittleness 

hardness/softness

plasticity 

weather resistance 

flexibility

400

Materials used can be chosen for reasons other than stability. What are some properties that a designer might look at that will have little impact on stability 

cost 

aesthetic 

availability 

safety

environmental impact 

500

A structures ability to bend and stretch without breaking 

flexibility 

D

100

This process involved glueing multiple layers of material together in order to make it stronger

lamination

200

Why are cars designed to go 150km/h when speed limits rarely let you go faster than 100

Because they build in a margin or safety

300

there are 2 mains ways that humans have gone about improving our designs. What are they.

Test for safety and improve

observe for safety and improve

400

there are 4 common ways to improve stability/strength what are they

corrugation 

lamination 

strengthening fastening material 

strengthening arrangement of materials 

500

If a structures collapse what happend next

determine the cause and then fix any other structures that may have similar issues

E

100

The changing number of students in a classroom is an example of this type of load.

Dynamic load

200

Name of the longest bridge in Canada

confederation bridge 

300

Materials can be joined together in 3 ways, what are they?

friction

bonding

mass

400

What should be considered when building any structure

safety

500

This structure in Calgary is considered an art piece but many do not see it that way 

the blue ring