What is the method used to determine forces in members of a truss that involves analyzing the free-body diagrams of joints?

Method of joints

Fill in the blank: A member of a truss that cannot carry any load is called a ______.

Zero force member

True or False: A space truss requires six bars joined at their ends to form the edges of a tetrahedron.

True

Riddle: I am a structure made of two-force members, all pin connected. What am I?

A truss

In the method of sections, how many equations can generally be written for each free-body diagram?

Three equations (two components of force and one moment equation)

Which principle allows us to write equations for joint equilibrium in truss analysis?

Newton's third law

Fill in the blank: When analyzing space trusses using the method of joints, we must satisfy the complete vector equation ΣF = ______.

0

True or False: Redundant members in a truss can be removed without affecting the stability of the structure.

False. Redundant members must be removed to ensure sufficient equations to solve for unknowns.

What type of structure cannot carry any load due to excessive freedom, often leading to collapse?

A mechanism

In a space truss, the connections must prevent bending, typically achieved by using what type of joint?

Ball-and-socket joint