General Principles and Force Vectors
Equilibrium and Force System Resultants
Rigid Bodies and Structural Analysis
Internal Forces and Friction, Fluid pressure
Gift of Gab
100
A physical quantity that requires both magnitude and direction
What is vector (oohhhhhhh yeaaah!)
100
The sum of the forces in a state of equilibrium
What is zero
100
The method of finding forces in members of a truss structure
What is method of joints and method of sections
100
The four types of resultant internal loads and draw with their positive sign convention.
What is normal and shear forces, bending and torsional moments.
100
work is defined as
What is F · dr
200
Three important idealizations used in mechanics in order to simplify application of the theory
What is a (i) particle (ii) rigid body (iii) concentrated force
200
The resultant force of a trapezoidal distributed load with sides 2kN/m and 5 kN/m and a base of 10 m
What is 35 N
200
In a truss structure, when there are three members at a joint without external forces and two are collinear, the other member is a
What is a zero force member
200
Another name for dry friction (French Physicist)
What is Coulomb friction
200
simplify 10 Mg μm / ( ms )^2
What is 10,000 N or 10 kN
300
A dot product of A and B is not ABsinθ, ABcosθ, AxBx + AyBy + AzBz, or A•B
What is ABsinθ (this is the ... ?)
300
The moment if r = 5i + 0j + 10k and F = 4i + 8j + 0k
What is -80i + 40j + 40k
300
The forces in ropes can be (comp, ten, both) and what is the difference between compression and tension
What is tension and compression = push while tension = pull
300
The equation for a section of a moment diagram that has a shear equation of x^2 kN
What is M = (1/3)*x^3 kN*m
300
For typical engineering problems, the standard format consists of
What is (i) given (ii) find (iii) solution (FBD)
400
What is the formula for a force vector directed along a line in 3D
What is F*[rx ry rz]/norm([rx ry rz])
400
Produced by two noncollinear forces that are equal in magnitude but opposite in direction
What is a couple moment
400
In equilibrium, a member with equal and opposite forces with the same line of action
What is a two-force member
400
The case when slipping at a surface of contact is about to occur and the magnitude of the friction force on an inclined plane
What is impending motion and F = μ mg cos θ
400
The two methods for finding the moment of inertia
What is composite parts and the parallel-axis theorem
500
Angles between the vector and the three coordinate axes
What is directional cosines
500
To find what part of the moment acts along a vector
What is taking the dot product of M with the unit vector.
500
Two types of structures which are composed of pin-connected multiforce members
What is frames and machines
500
The (magnitude) of a linear distribution of loading on a submerged surface according to which law.
What is Pascal's law, with magnitude p = ρ g h = γ h
500
examples of forces that are independent of the path it travels and the conditions for stability
What is the gravitational and spring force, what is dV/dq=0, and ...
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