Forces
Newton
Structures
natural forces
100
A force is a ________ or a __________
What is push or pull
100
how many laws of motion are there?
3
100
who is responsible for the planning, design, construction, and management of the natural and built environment?
Civil engineers
100
Name four natural phenomena that effect structures.
What is earthquake, hurricane, tornados, ice storms, floods
200
Give two examples of pushing forces
What is friction and bouyancy
200
Force is measured using what unit of measurement?
What is newton
200
Something with a definite size, shape, purpose, and can hold a load is a:
Structure
200
What building technique is used to help hold the weight of the snow on a roof?
What is a truss
300
Give two examples of pulling forces
What is gravity and magnetic
300
What is sir Issac Newton's first law (Inertia)
What is an object is motion will stay in motion until an outside force is put upon it.
300
This bridge uses cables suspended from towers to support the load.
Suspension Bridge
300
A push or a pull that can make an object start moving or stop moving is a:
force
400
Compression is a __________ force
What is pushing
400
3rd law
400
What is human engeneer's strongest shape?
Triangle
400
What type of bridge uses triangulation to support tension and compression?
A Truss bridge
500
Torque is a ___________ force
What is twisting force.
500
What is Newton's 2nd Law?
the greater the mass of an object, the more force it will take to accelerate the object.
500
true or false: A spider web is a natural structure.
TRUE
500
Is snow building up on the roof of a building an internal or external force?
External force