science term 2 test 1

Question 1

static load vs. dynamic load

Answer 1

static load= load that doesn’t move or change
dynamic load=load that moves and/or changes

Question 2

Internal force vs. external force

Answer 2

Internal force= acts from within structure
external force= acts on structure from outside structure

Question 3

form vs. function

Answer 3

form= Shape size and material of structure eg. soccer ball= round filled with air
Function= structures purpose eg. soccer ball= to kick around in order to play soccer

Question 4

what strategies are used by engineers to ensure that structures are safe

Answer 4

sensors and load design (maximum load warning)

Question 5

what is the function of symmetry in structures

Answer 5

makes a structures stability and center of gravity are stronger

Question 6

force

Answer 6

a push or pull that can make an object start or stop moving

Question 7

Internal force

Answer 7

one part of a structure is creating force on other parts
(shear,torsion, compression, tension)

Question 8

External force

Answer 8

acts on a structure from outside

Question 9

shear

Answer 9

a force that pushes in opposite directions

Question 10

torsion

Answer 10

a force that twists an object

Question 11

tension

Answer 11

a force that pulls/stretches an object

Question 12

compression

Answer 12

a force that squeezes an object

Question 13

sensor

Answer 13

a device that detects/measures a conditon

Question 14

symmetry

Answer 14

a structures sides are identical

Question 15

aesthetics

Answer 15

how something looks

Question 16

static load

Answer 16

a load that stays the same

Question 17

dynamic load

Answer 17

a load that changes

Question 18

line of symmetry

Answer 18

a line where both sides are the same on either side

Question 19

suspension bridge

Answer 19

uses cables from a tall structure to support the load

Question 20

beam bridge

Answer 20

a horizontal bridge supported by piers

Question 21

arch bridge

Answer 21

uses a semicircle shape to support load

Question 22

truss bridge

Answer 22

has a base made from triangles

Question 23

form

Answer 23

the shape size and materials of a structure

Question 24

function

Answer 24

a structures purpose

Question 25

form follows function

Answer 25

a structures purpose should be determined before how something looks

Question 26

Frame structure

Answer 26

Relies on framework arrangement that’s made from connected parts
Eg. house

Question 27

Solid structure

Answer 27

Made from one piece of solid material