Sunday, November 28, 2021

Scale ratio by sudesh

 DEFINE IT:

The scale ratio of a model represents the proportional ratio of a linear dimension of the model to the same feature of the original. Examples include a 3-dimensional scale model of a building or the scale drawings of the elevations or plans of a building.


THINK ON IT 

Scale models are important because it allows designers to make an object in a lower cost and it is a replica of the real one.Scale models are used when they are used to create maps and other scale diagrams. When things are too big to draw on paper, scale factors are used to calculate smaller, proportional measurements. Floor plans for house designs are drawn on a smaller scale.Scale drawings are a useful tool for any designer, because they can be used to plan, visualize and adjust landscape plans before breaking ground. Scale drawings assign each object the same scale compared to the actual objects.


The 4 fields in which scale drawing or models are used:


Architect's : architect  are used for structures and buildings. They are used to measure interior and exterior dimensions such as rooms, walls, doors, windows, and fire protection system details.


Engineers:An engineer's  is an instrument that is similar to a ruler and is used to measure scale on technical drawings.


Mechanical drafters:Mechanical drafters prepare layouts that show the details for a wide variety of machinery and mechanical tools and devices, such as medical equipment.
















Explore it 

Finding the height,length and width of an object,by using a scale ratio to Solve the problem.Using the 3 objects a car,television and a bed and finding to ratio of the object.













Create it 

Using cm for the toys and drawing of a real life item of  a car,

television and a bed and showing the height, width and length of the object and comparing the real with the small replica object.


Toy Car:

height:7cm               140÷7=20  (1:20)

Length:10cm            450÷10=45 (1:45)

Width:8                   


Real car:

Height: 140cm 

Length:450cm 

Width:190cm 




Television drawing:

Height:10cm                 70÷10=7  (1:7)

Length :15cm            153÷15=10.2(1:10.2)

Width :5cm                 121÷5=24.2 (1:24.2)


Real television:

 Height:70cm               

Length:153cm 

Width:121


Drawing of bed:        

Height:10cm             40÷10=4  (1:4)

Length:16cm             80÷16=5 (1:5)

Width:15cm              75÷15=5 (1:5)


Real bed

Height:40cm

Length:80cm

Width:75cm


Reference 

https://www.oxfordreference.com/view/10.1093/oi/authority.20110803100405429





  





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