Flashcards
Physics-Structures
Cards in this deck (28)
- 1AccelerateSpeeds Up
- 2DeceleratesSlows Down
- 3Balanced ForceAll forces cancel each other out, zero overall force, no change will result.
- 4Unbalanced ForceForces do not cancel each other completely, an overall force exists causing a change.
- 5CompressionForces attempting to squash a material.
- 6TensionForces attempting to stretch a material.
- 7ForcePull, Push, Twist
- 8NeckingThinning of a material just before it snaps
- 9StressMeasure of how concentrated a force is on a material.
- 10How to Calculate StressForce divided by Area
- 11MassLarge body of matter with no definite shape
- 12WeightGravitational force on a mass
- 13TrussLightweight structure made from triangles, commonly used in bridges.
- 14BeamLintel, used over windows and doors to hold up the weight of the wall above it.
- 15Newtons 1st LawThe motion of a object will not change if the forces acting on it are balanced.
- 16Newtons 2nd LawAn object will accelerate if an unbalanced force is acting on it.
- 17Newtons 3rd LawFor every force in a structure, there is an equal and opposite force acting on the structure.
- 18What is the Centre of Mass?The centre of mass (centre of gravity) is the point at which all the mass of an object can be thought to be concentrated.
- 19What is a Gothic Arch?Pointed Arch
Used to hold up Cathedrals and Churches
All walls are under compression
Built from Stone, Concrete or Brick
Weight pushed down more Vertically
Uses stone buttresses for support. - 20What are Roman Arches?Post and Beam method
Semicircular arch
All materials under compression
Made from Marble, Concrete, Bricks or Mud
Weight of arch is transferred into thick walls - 21—Beam bridge
- 22—Arch Bridge
- 23—Suspension Bridge
- 24—Cable Bridge
- 25—Cartilever Bridge
- 26—Bowstring Arch Bridge
- 27Force on the top part of the Bridge is...Tension
- 28Force on bottom part of bridge is...Compression
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- 10 Science Flashcards on Physics-Structures, created by stephabraham on 02/06/2015.
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- stephabraham
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