science 5

Question 1

stability is

Answer 1

the ability of a structure to maintain or resume its position when an eternal force acts on it

Question 2

beam

Answer 2

a flat structure that supported on each end

Question 3

collumn

Answer 3

a solid structure that can stand by its self

Question 4

truss

Answer 4

rigid framework of beams joined together

Question 5

cantilever

Answer 5

a flat stucture supported only on one end

Question 6

box beams

Answer 6

long beams in the shape of hollow rectangles

Question 7

arch

Answer 7

a curved stucture that can support a lot of weight

Question 8

corrugated metal

Answer 8

a sheet of metal shaped into pleats of triangle

Question 9

centre of gravity

Answer 9

the point at which mass is concentrated

Question 10

what does stability depend on

Answer 10

materials constuction and the centre of gravity

Question 11

well designed stuctures are

Answer 11

safe and easy as well as cofortable to use and strong enough for the job

Question 12

ergonomics

Answer 12

the design eqiptment that people use more efficiantly and safley

Question 13

symmetry

Answer 13

things that have almost equal sides

Question 14

pryototype

Answer 14

a model used to test and evaluate a design

Question 15

structural stress

Answer 15

when a structure has to face large combinations of internal and external forces over a long time

Question 16

structural fatigue

Answer 16

any permanent stress like cracks in a sink

Question 17

stuctural failure

Answer 17

any breaking stress or thing ex if u don’t fix the sink it may the sink that is structural failure