Arches

The video explores the historical and structural significance of arches, pioneered by the Romans, and their role in architecture. It explains how arches distribute forces, making them strong and durable. The evolution of bridge design is discussed, highlighting the shift from semicircular to parabolic arches, which allow for more efficient and flexible structures.

Which civilization is credited with pioneering the use of arches in Western architecture?

• Ancient Egyptians

• Ancient Romans

• Ancient Chinese

• Ancient Greeks

What is the role of the keystone in an arch?

• It provides strength by locking the other stones in place

• It is the first stone placed in the arch

• It supports the arch temporarily

• It decorates the arch

How do the forces of gravity affect an arch?

• They focus on the center of the arch

• They spread sideways and down to the base

• They have no effect on the arch

• They make the arch weaker

Why are parabolic arches preferred over semicircular arches in modern bridge design?

• They require less material

• They are more aesthetically pleasing

• They carry horizontal forces directly to the foundations

• They are easier to construct

What advantage does the modern design of arches provide to architects?

• It allows for wider, larger, and longer structures

• It enables the use of cheaper materials

• It simplifies the construction process

• It allows for more decorative elements