Question

which forces are easier to anticipate and design for internal or external why do you think so ?​

Answer 1

Answer:

In this time of climate change we have been witness to many natural disasters which have caused the destruction of man-made structures. Tornadoes, tsunamis, floods, avalanches and earthquakes have created external forces which have produced stresses on the materials that we use to build buildings, bridges and roads. All structures around us are built to bear live loads but sometimes they succumb to these powerful external forces of Mother Nature and disaster ensues.

The external forces such as wind, water and the vibration of the earth when an earthquake happens create internal forces within a structure. Internal forces such as shear, tension and compression can destroy the inner framework of a building or a bridge even though it is made of super strong steel and concrete.

Natural external forces acting on structures is part of the grade five curriculum, we have many books in our system, as well as links to databases that can help with a research on this topic.

Answer 2

Forces are easy to imagine and the interior or exterior design is as follows:

• Energy can be divided into internal energy or external energy.
• There are many complex and appropriate ways of describing and distinguishing between internal and external forces.
• The importance of separating energy as internal or external is related.
• The ability of that type of force to change the total force of an object when working on an object.
• When a network is made over an object by an external force, the total mechanical strength (KE + PE) of that object is changed.