1. Section D3 Assignment You will need: D3 Notes NAME:

2. True or False? “Almost any material can be used to build any structure.” EXPLAIN your answer.

3. Why is it important to match the material you use to the function of the structure you are building?

4. Identify 3 structures in the NATURAL environment that have fixed joints.

5. Identify 3 structures in the MANUFACTURED environment that have movable joints.

6. What would happen if ligament material in the human body were replaced by bone material?

7. Explain how sanding the surface of a smooth material to make it rougher will improve the joining of two parts.

8. What is friction? Give an example of friction.

9. Define the following terms: Brittleness Ductility Plasticity Deformation Flexibility