True or False
A tooth is a structure
True
I am a shape that is often considered the strongest. You especially used me when playing the bridge game! What am I?
Triangle
Convert 70kg to Newtons (double points if you can remember how to do it without having to round it!) (and yes, you can use a calculator for it if you have!)
700N (686N for double points!)
Name all 4 types of forces
Tension, compression, shear, torsion
Give me one example of a frame structure you can see right now.
Person, chair, table, the school, etc…
False (varies between different people and how their bodies are shaped)
I am a measuring system for force. One way you can measure using me is by using a spring scale. You can also convert me (10 of me is equal to about 1kg). What am I?
Newton
If a bridge weighs 10,000 kg and can hold 10,000 kg, what is the structural efficiency?
1
Pushing a table is creating what type of force?
Compression
What type of structure is a brick?
Solid
The place where a structure is evenly balanced is called the centre of gravity
True
I am a structure that has no hollow openings. Examples of me are rocks and bricks. What am I?
Solid Structure
If a 3kg vase is sitting on a table, what direction is the effort going?
Down.
Tug of war is an example of what type of force?
Tension
Give me 3 examples of a shell structure
Shell, egg, dome, helmet, skull, cup, etc…
A hurricane is an example of internal natural force
False (it is EXTERNAL)
I am a fixture on a building that helps when it rains. I gather water from the roof and then shoot it out of a water spout, almost like a slide. What am I?
Eavestroughs
If a 120lb person could bench press a maximum of 240lbs, what is their structural efficiency?
2
When we sit on a chair, what type of force are we applying to the chair?
Name the two things that make up a frame structure
Rows and Columns
If a person weighs 100 pounds and can lift 200 pounds, their structural efficiency is 20
False (it is 2)
I am the exact place of contact when force is being applied. Where the effort touches the structure, that’s where I am. What am I?
Point of Application
If a 150kg sofa could hold a maximum weight of 1500kg, what is the structural efficiency?
10
Give an example of torsion force being used
Wringing a rag, twisting a bottle cap, etc…
Name something that is NOT a structure
Any liquid or gas.