Engineering Principles: Force and Structure

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<p>An imaginary line that divides an object into two mirror-image halves (D)</p> Signup and view all the answers

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A push or pull that can start or stop an object's movement.

A force that acts on a structure from outside, like gravity or wind.

Forces that originate within a structure, like compression or tension.

A force that doesn't change in size, position, or direction. Example: The weight of a structure.

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A force that can vary in size, position, or direction. Example: Wind on a building.

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A force is a push or pull that can start or stop an object moving.
Forces act on all structures, either from outside (external forces, like gravity) or inside (internal forces, like compression, tension, shear, and torsion).
Contact forces happen when objects touch, while non-contact forces don't require touch.

Static loads don't change size, position, or direction (e.g., weight of a structure).
Dynamic loads can change (e.g., wind, snow).

Symmetry is when an object is the same on both sides.
It also implies balance and harmony in structures.
A line of symmetry is an imaginary line dividing the object in mirror-image halves.

The Ontario Building Code creates safer and sturdier structures, promoting public health and safety, among other factors.
Sensors are devices that detect and measure things like building vibrations, which are monitored by computers.