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WorksheetsTecnology - Structures (2º ESO)
Total questions: 45
Worksheet time: 14mins
Name
Class
Date
1.
What is the main function of a structure?
a)
To decorate buildings
b)
To support loads and stay stable
c)
To produce energy
d)
To conduct heat
2.
Which of these is a natural structure?
a)
A bridge
b)
A tree
c)
A car
d)
A building
3.
Which of these is an artificial structure?
a)
A spider web
b)
A dam
c)
A beehive
d)
A mountain
4.
A structure is stable when...
a)
It is very flexible
b)
It moves easily
c)
All forces acting on it are balanced
d)
It is made of metal
5.
Which shape gives more stability to a structure?
a)
Square
b)
Rectangle
c)
Triangle
d)
Circle
6.
In a framed structure, the elements are connected to form a...
a)
Skeleton
b)
Solid block
c)
Cable network
d)
Flat sheet
7.
Which element connects beams and columns?
a)
Joint
b)
Dome
c)
Vault
d)
Panel
8.
The foundation of a building...
a)
Supports the entire weight of the structure
b)
Holds the windows
c)
Prevents corrosion
d)
Decorates the walls
9.
Pillars or columns mainly resist...
a)
Torsion
b)
Compression
c)
Shearing
d)
Bending
10.
What kind of force makes an object longer?
a)
Compression
b)
Tension
c)
Shearing
d)
Bending
11.
What kind of force makes an object shorter?
a)
Compression
b)
Tension
c)
Torsion
d)
Shearing
12.
What kind of force acts when you twist an object?
a)
Bending
b)
Compression
c)
Torsion
d)
Shearing
13.
What kind of force acts when two parts slide in opposite directions?
a)
Shearing
b)
Tension
c)
Compression
d)
Bending
14.
To make a structure rigid and undeformable, the best method is...
a)
Decoration
b)
Triangulation
c)
Painting
d)
Adding weight
15.
If a bridge bends in the middle when cars pass, which force is acting?
a)
Tension
b)
Compression
c)
Bending
d)
Torsion
16.
Which force acts in a rope when it is pulled tight?
a)
Compression
b)
Tension
c)
Bending
d)
Shearing
17.
A dome is a type of vault.
a)
True
b)
False
18.
Dead loads are...
a)
Permanent loads like the weight of walls
b)
Temporary loads like people
c)
Loads caused by wind
d)
Forces that twist
19.
Compression pushes materials together.
a)
True
b)
False
20.
Tension is a force that pushes objects together.
a)
True
b)
False
21.
Shearing happens when two parts slide in opposite directions.
a)
True
b)
False
22.
Dynamic loads are...
a)
Permanent
b)
Temporary and movable
c)
Wind and earthquakes
d)
Forces that twist
23.
Dynamic loads are...
a)
Constant and unchanging
b)
Moving or changing with time
c)
Always vertical
d)
Only in bridges
24.
Furniture in a house produces a...
a)
Dead load
b)
Live load
c)
Dynamic load
d)
Torsion
25.
Wind on a skyscraper is an example of a...
a)
Dead load
b)
Live load
c)
Dynamic load
d)
Shearing force
26.
Cars moving on a bridge are an example of a...
a)
Dead load
b)
Live load
c)
Dynamic load
d)
Compression force
27.
People inside a building create a...
a)
Dead load
b)
Live load
c)
Dynamic load
d)
Bending force
28.
The own weight of the building is a...
a)
Live load
b)
Dynamic load
c)
Dead load
d)
Shearing force
29.
Rain or snow on a roof cause a...
a)
Live load
b)
Dead load
c)
Dynamic load
d)
Torsion
30.
Earthquakes cause a...
a)
Dynamic load
b)
Live load
c)
Dead load
d)
Compression force
31.
A lintel supports the load mainly by...
a)
Bending
b)
Compression
c)
Tension
d)
Shearing
32.
An arch supports the load mainly by...
a)
Compression
b)
Bending
c)
Shearing
d)
Tension
33.
Which structure can support more load: an arch or a lintel?
a)
Arch
b)
Lintel
c)
Both the same
d)
None
34.
Why can an arch support more load than a lintel?
a)
Because it distributes compression along the curve
b)
Because it is lighter
c)
Because it is flexible
d)
Because it uses triangles
35.
In a lintel, where is tension found?
a)
In the lower part
b)
In the upper part
c)
In the center
d)
Everywhere
36.
Arches transfer the forces...
a)
Vertically downwards
b)
Sideways to the supports
c)
Upwards to the keystone
d)
In circles
37.
The keystone in an arch...
a)
Locks the stones and completes the arch
b)
Is the weakest point
c)
Adds decoration
d)
Supports nothing
38.
Lintels usually fail because of...
a)
Bending and cracking
b)
Compression
c)
Overheating
d)
Corrosion
39.
The Roman aqueducts are examples of...
a)
Arches
b)
Lintels
c)
Beams
d)
Towers
40.
A stone beam without curve is called a...
a)
Lintel
b)
Arch
c)
Vault
d)
Column
41.
A structure collapses when...
a)
The forces are not balanced
b)
The materials are perfect
c)
It is overdesigned
d)
It has no load
42.
Corrosion weakens structures because...
a)
It damages metals with rust
b)
It makes them heavier
c)
It adds strength
d)
It cools them
43.
Deformation happens when...
a)
The shape changes due to forces
b)
The materials stay rigid
c)
The forces are balanced
d)
The load is zero
44.
To prevent corrosion we can...
a)
Paint or coat the metal
b)
Add more weight
c)
Remove all beams
d)
Use plastic
45.
Cracks appear in lintels because of...
a)
Tension and bending
b)
Compression only
c)
Shearing
d)
Torsion
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