| A | B |
|---|
| load | a mass on a structure |
| joint | a connection of different parts of a structure |
| dynamic (live) load | mass that moves or changes on a strucutre |
| static (dead) load | mass that does not change on a structure |
| arch | a curved strong shape |
| beam | a flat board (usually on a bridge) |
| dome | a 3-D arch - strong shape |
| truss | a triangular strong shape for building |
| mobile joint | a joint that moves |
| rigid joint | a joint that does not move |
