What is Newton’s First Law of Motion?
If a body is at rest or moving at a constant speed in a straight line, it will continue to do so unless it is acted upon by a force.
What is Newton’s Second Law of Motion and the formula associated with it?
The acceleration of an object is directly proportional to the force applied to it and inversely proportional to its mass.
(F=ma)
What is the formula for calculating force with Newton’s Second Lay of Motion?
F=ma (a=gravity)
What is Newton’a Third Lay of Motion?
Every force applied to a structure by a load must have an equal and opposite reaction applied by the structure in order for equilibrium to be maintained.
What is the formula for density?
Density = mass / volume
p=mV
What is the unit of density?
Kg/m3
Newtons are equal to what units?
N = kg x m/s2
What is tensile force?
A force acting on an object causing it to stretch
What is compressive force?
A force acting on an object causing it to squeeze or compress
What is shear force?
A force acting on an object causing parts of it to slide in relation to each other
What is a torsion?
Torsion occurs when two forces acting on an object cause it to be twisted
What is unit weight?
It is the force per unit volume of a material
Unit weight = density x force
What are the two formulas for unit weight?
Unit weight = density x gravity(force)
Force = unit weight x volume
What is a point load?
A concentrated load that acts at one point
What are uniformly distributed loads? (UDL)
The total load is uniformly distributed across a structural element (N/m)
