Bridges
Strength & Stability
Famous Structures
Types of Beams
100
Name a type of bridge.
Truss, suspension, beam, arch, answers may vary.
100
Centre of gravity in a soccer ball
The middle
100
Tallest building in the world
Burj Khalifa
100
A beam that is in the shape of a letter
I-Beam
200
The Golden Gate Bridge is a ...... bridge
Suspension
200
Centre of gravity of a standing human
Usually below the belly button
200
Name two of the New 7 Wonders of the Worlds
Machu Picchu, Chichén Itzá, Petra, Taj Mahal, Christ the Redeemer, the Colosseum, and the Great Wall of China (answers may vary)
200
A beam from the top of the main beam that isn't filled in.
Tie
300
What type of beam is only supported on one side?
Cantilever
300
Why do tightrope walkers usually hold long poles?
To lower their centre of gravity, making it harder for them to fall
300
Famous tower in Toronto
CN tower
300
A beam from the bottom of a main beam that isn't filled in.
Strut
400
What bridge has a curve under the bridge?
Arch Bridge
400
Define centre of gravity
The point where an object's weight is equally balanced out in all directions
400
Approximately how long is the Great Wall of China? (kilometers)
About 21,200 km
400
A filled in triangle from the top of the main beam
Gusset
500
Longest bridge spanning over ice-covered water
Confederation Bridge
500
2 examples of how to strengthen beams
Rebar, corrugated, and I-beam (answers may vary)
500
Shortest skyscraper in the world
Newby-McMahon Building
500
What is a famous example of a cantilever in Niagara Falls?
Observation Tower