Categorize the following items as a structure or not a structure.
A puddle of water
The human body
Air
A shoe
Motion
A pencil
Energy
A house
A teapot
Force
Match the description with its structural force.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Squeezing | arrow_right_alt | Torsion |
Squeezing and Stretching on different sides | arrow_right_alt | Tension |
Sliding past each other | arrow_right_alt | Compression |
Stretching | arrow_right_alt | Shear |
Twisting | arrow_right_alt | Bending |
Match the structural component with its image.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Cantilever | arrow_right_alt |
|
Beam | arrow_right_alt |
|
Column | arrow_right_alt |
|
Label the forces of tension and compression on the tightrope, and then add the arrows showing the direction of the forces.

A friend of yours needs to send a painting via mail. They plan to roll the painting up and put it into a box. There are two options available at the post office. One is a long, rectangular prism, and the other is a long, triangular prism (as shown in image below). Explain which box you would recommend to best protect the painting.

Which structural forces are acting on this bridge as a truck drives across it? Label all forces with the name of the force and arrows.
Draw the structural forces acting on a rectangle. Your drawing should include arrows showing the direction of the force and the name of each force.