Science Review Questions Unit 3.

27 cards   |   Total Attempts: 191
  

Cards In This Set

Front Back
What are the Pros and Cons of Mass Structures?
Pros: Held In place by own weight, losing small parts has little effect, can be eroded for a long period of time. Cons: Not always solid, High Price, Takes a long time to constuct
What are the Pros and Cons of Frame Structures?
Pros: Low cost, Faster to build, Less material/ weight loss Cons: Easily Breakable,Requires reinforcments
What are the Pros and Cons of Shell Structures?
Pros: Hollow inside, use few materials Cons: One small weakness can destroy it
Whats the difference between natural and man-made structures? Give 3 examples.
Natural Structures are NOT made by people and are naturally occuring. Natural structures ARE made by people and are modelled after natural structures. Ex.) Caves, Homes, Tree stumps.
Define Function.
The main purpose of a structure.
Define Design.
The materials, shape and size of a structure.
Define Aesthetics.
A type of philosophy which studies beauty; Properties that make an object pleasing.
Can you layer weak materials to make them stronger?
Yes, you can.
What is the advantage of using composite materials?
Make materials stronger.
What is a ridgid joint?
A ridgid joint is a joint that does not allow movement.
What is a mobile joint?
A mobile joint is a joint that allows movement.
How many materials can be joined?
Interlocking joints can be joined through welding or soldering.
Define Load.
The weight carried by a structure.
Define Live Load.
The force(s) that act in or on a structure.
Define Compression.
A force that squeezes or compacts a material.