Center of Gravity
The point where an object’s weight is equally distributed.
What is the center of gravity?
Buildings, bridges, and chairs are all examples of this.
What are structures?
The process of layering, folding, and twisting materials makes them ____.
What is stronger?
The force that pulls objects toward the Earth.
What is gravity?
A structure built to fit feet.
What is a shoe?
A structure with a high center of gravity is more likely to do this.
What is tip over?
This type of structure is more likely to tip over if it has a narrow base and high center of gravity.
What is an unstable structure?
Steel rods inside concrete help improve this.
What is strength?
The weight of people and objects inside a building.
What is a live load?
The purpose of this tower is to send radio waves across the city.
What is the CN tower?
One way to make a structure more stable is to do this to its center of gravity.
What is lower it?
The bottom part of a structure that helps keep it stable.
What is the foundation/ base?
How long a material will last.
What is durability?
The weight of a structure itself, including its materials.
What is a dead load?
These structures can hold thousands of people at once and sway up to a metre on a windy day.
What are skyscrapers?
This 3D shape has a naturally low center of gravity, making it one of the most stable designs.
What is a pyramid?
Things that hold materials together.
What are fasteners?
Flexibility, durability, and strength are properties of____.
What are materials?
A bridge supports both its own weight and cars driving across it. What are these two types of loads?
What are dead load and live load?
A steel cable in an example of ______ to strengthen material.
what is twisting/braiding?
This commonly found object has a clear centre of gravity being right in the centre.
What is a ball?
Why do playground slides have supports underneath instead of just the slide by itself?
What is to make the structure stronger?
A material that is strong, flexible, and often used for buildings.
What is wood?
A bookshelf is holding 20 books. If you remove 10 books, what happens to the load?
What is the live load decreases?
This shape is stronger than rectangular and triangular prisms.
what is a cylinder?