1. Combination structure
2. a combination structure is something that has a combination of structures.
3. house
4. Playground
5. Sand castle
6. umbrella
7. Dynamic load
7.1. a force that is applied by something other than gravity
7.2. Wind
7.3. Snow
8. The point of object that the mass is the same
9. Solid structure
10. is a structure with a open and dependable base
11. building
12. Frame structure
13. an open structure that gives support to an object
14. Spider webb
15. structures that can keep their shape without a frame to support
16. Shell structure
17. volleyball
18. bike helmet
19. Center of Gravity
20. Types of structures
21. Load
21.1. Live load
21.1.1. a force that is applied by the weight of people or goods
21.1.2. humans
21.1.3. machines
21.2. Dead load
21.2.1. the weight of the object itself being pushed by gravity
21.2.2. Bridge
21.2.3. Building
22. A person balancing a stick
23. CN Tower
23.1. THe CN tower is a combination sructure. It has shell material on the top and frame structure through the outside of the tower
23.2. The CN tower was build for communication, observation and a tourist attraction area for Toronto.
23.3. The form of the CN tower has glass shards in the middle of the tower and the 360 degree restaurant at the top of the tower. The bottom of the tower is hollow but gradually gets broad.
23.4. An external force the CN tower would experince would be direction and magnitude. This is because of some dynamic loads such as wind which would be a push. Depending on how heavy the wind would be it can knock the building down.
23.5. An internal force would be compression when thre is a lot snow on the building.
23.6. The center of gravity would be low because the structure has a wide base so that the tower won't tip.
24. The eiffel tower
24.1. The eiffel tower is a frame structure
24.2. The eiffel tower is built for world expo (show technical advancment) and tourist attraction.
24.3. The eiffel tower's form is a metal frame structure and it has a wide base narrowing it to a point.
24.4. One external force would be direction. It would be a push beacause of wind or other dynamic load. another external force would be magnitude. Since the Eiffel tower and CN tower were build to a certain capacity, that determines how much force it can withstand.
24.5. One internal force would be compression when people are on it. It could also be snow, rain or other things that could be on the eiffel tower.
24.6. The center of gravity is low because of the wide base and the smaller top. The eiffel tower has a bigger base so that the center of gravity would be lower meaning that it would be more stable.
25. Form and function
25.1. Form is what the structure looks like
25.2. Function is the job that the object must perform
26. External Force
26.1. External forces are forces that act on a object from the outside
26.1.1. Point of application
26.1.1.1. Point of application means where the force or act is going
26.1.2. Direction
26.1.2.1. Is a force that is called either a pull or a push
26.1.3. Plane of application
26.1.3.1. Is a force that is applied to an object to make it move from one place to another
26.1.4. Magnitude
26.1.4.1. How heavy, moderate or light the force is applied to the object
27. Internal force
27.1. Internal forces is forces that act within the object.
27.1.1. Tension
27.1.1.1. A force that pulls or strectches
27.1.1.1.1. pulling a rubberband
27.1.2. Torsion
27.1.2.1. A force that twists an object
27.1.2.1.1. twisting a cloth
27.1.3. Compression
27.1.3.1. A force that pushes an object both sides
27.1.3.1.1. compressing a ball
27.1.4. Shear
27.1.4.1. Shear is the act of breaking an object by pushing one part of an object and the other part, opposite direction.
27.1.4.1.1. shear