Week 14-15 Quiz - Towers

1. Week 14-15 Quiz - Towers

2. Question 1 How do compression forces act on a tower? • Compression pulls the components of a tower together • Compression pulls the components of a tower apart • Compression twists the components of a tower sideways

3. Question 2 How do tension forces act on a tower? • Tension pulls the components of a tower together. • Tension pulls the components of a tower apart • Tension twists the components of a tower sideways

4. Question 3 How do torsion forces act on a tower? • Torsion pulls the components of a tower together • Torsion pulls the components of a tower apart • Torsion twists the components of a tower sideways

5. Question 4 What will happen when a force is exerted downward in this tower? • The tower will break near the • The tower will break near the • The tower will break near the • The tower will break near the

6. Question 5 What force usually causes a balsa tower to bow and break in the middle? a. Tension b. Compression c. Torsion d. Elation

7. Question 6 Why are glass-covered sky scrapers more common than those covered by bricks or concrete? • Glass looks better • Glass is stronger • Glass is cheaper • Glass is easier to make

8. Question 7 Which is stronger? • A joint held together with nuts and bolts • A joint held together with welds • A joint held together with glue

9. Question 8 A tuned ______ _________ is a huge block of concrete at the top of tall skyscrapers that counteracts sway.

10. Question 9 Using the following math formula, what will yield the greatest efficiency score? E = mass supported + height of tower mass of tower • Having a lightweight tower • Having a tall tower • Supporting a large load • Having dense building materials

11. Question 10 True or False The only way to span a 20 cm square hole is to build a 4-sided structure with a base greater than 20 cm.