Topic 1,2,3,4,5
What is a force?
A push or a pull
What is the strongest of shapes?
Triangles
What is a stable structure?
A structure that is less likely to fall or tip over.
What does FSCAM stand for?
Function
Safety
Cost
Aesthetics
Materials
Three steps engineers go through when analyzing structures
Choosing the right materials
Choosing the right shape
Find where there is internal stress
What is Center of Gravity?
A special point on a structure where all forces and weight is acting equally
Which joint is AMFIT associated with
Rigid joints
Three methods that designers use to make a strong, but not too heavy structure
I, T, or L beams
Hollow Beams
Corrugations
How can you make objects be stable?
When it is resting on a larger area
When majority of mass is close to the ground
A dead bird is a _____ load
Live
Three ways structures withstand forces
Distribute the load across the structure.
Direct the forces on angles.
Shape the parts to withstand the force.
How can you tell if a structure is balanced or unbalanced?
If the center of gravity is in the foundation, it is balanced
If the center of gravity is outside the foundation, it is unbalanced
True or False?
My mass on Earth is 55 kgs but my mass on the moon will be 23 kgs.
FALSE.
Mass NEVER changes
What is friction and how does it help a structure survive?
A force that slows down motion, occurs between two surfaces rubbing together.
Helps structures survive by keeping pieces from moving apart, creating a strong bond that holds surfaces together, and holding frames together.
What are three methods that engineers use to create a firm foundation?
Put heavy items on the base to make it solid.
Construct solid base.
Spread load by putting in a footing.