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Structures (Grade 5) Flashcards | StudBud
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Structures (Grade 5)
Structures (Grade 5)
20 terms
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#sciencegrade5 #structures
Flashcards
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Answers
1
What are some examples of internal forces
torsion, compression, tension, gravity
tension, compression, gravity, wind
torsion, compression, shear, tension
gravity, wind, shear, torsion
2
What kind of bridge did most teams build?
beam bridge
truss bridge
arch bridge
cantilever bridge
3
What is shear?
a force that stretches something
a force that bends or tears a material
a force that twists something in the opposite direction
force crushing a material or object by squeezing it together
4
What is compression?
a force that bends or tears a material
a force that stretches something
a force that twists something in the opposite direction
a force crushing or squeezing a material an object together
5
What kind of bridge won the challenge for strongest bridge?
arch bridge
beam bridge
suspension bridge
truss bridge
6
What does strength mean?
any system that uses one or more simple machine
the force that acts by pulling objects toward the ground
the capacity to withstand forces
capacity to maintain balance and stay fixed in one position
7
What is the definition of force?
a push or pull that changes the motion or shape of an object
a force that twists something in the opposite direction
a mechanical device for applying a force
a force that stretches something
8
What is a mechanism?
a push or pull that changes the motion or shape of an object
something built or constructed
stresses that act on the structure from inside the structure
has moving parts that perform some function
9
Why is it important to wear protective sports equipment?
to protect our bodies from forces
to protect our bodies from forces
to protect our bodies for forces
to protect our bodies from forces
10
What does stability mean?
stresses that act on a structure from outside the structure
the capacity to withstand forces
a force that stretches something
capacity to maintain balance and stay fixed in one position
11
What are some examples of external forces?
gravity, wind, compression, tension
tension, tornado, earthquake, hurricane
hurricane, tsunami, torsion, compression
gravity, tornado, earthquake, tsunami, hurricane
12
What are some examples of natural phenomena?
hurricanes
tsunamis
tornadoes
All of the above
13
What are the most common internal forces that act upon bridges?
compression and torsion
tension and compression
torsion and shear
tension and shear
14
What do engineers need to consider when designing a bridge?
span
materials
purpose
all of the above
15
what is a structure?
something built or constructed
made to hold a load
supporting framework with a definite shape, size and purpose
All of the Above
16
What kind of bridge is the Quebec Bridge
truss bridge
suspension bridge
arch bridge
cantilever bridge
17
What is tension?
a force that stretches something
a force that bends or tears a material
a force crushing a material/ object by squeezing it together
a force that twists something in the opposite direction
18
What is not an example of a simple machine?
lever
inclined plane
pulley
scissors
19
What is torsion?
a force that stretches something
a force crushing a material/ object by squeezing it together
a force that twists something in the opposite direction
a force that bends or tears a material
20
What is a mechanical advantage?
makes things harder to move and lift
anything that makes it easier to lift or move a load has a ?
a simple machine
has moving parts
