Chapter 1: Introduction Flashcards
A branch of the physical sciences that is concerned with the state of rest or motion of bodies that are subjected to the action forces
Mechanics
A rigid body mechanics that deals with the equilibrium of a body
Statics
A rigid body mechanics that is concerned with the accelerated motion of bodies
Dynamics
The study of the internal effects of external forces applied to a body
Deformable Body Mechanics
Study of fluid behavior at rest and in motion
Fluid Mechanics
Archimedes- simple machines
Principle of Lever, Pulley, Inclined Plane and Wrench
Galileo Galilei
Experiments on Pendulums and Falling Bodies
Isaac Newton
3 Fundamental Laws of Motion and Law of Universal Gravitational Attraction
Size of a physical system
Length
Succesion of events
Time
Time independent
Statics
Time dependent
Dynamics
Quantity of matter
Mass
Push or pull exerted
Force
Has a mass but a size that can be neglected
Particle
Can be considered as a combination of a large number of particles in which all the particles remain at a fixed distance from one another
Rigid Body
Represents the effect of a loading which is assumed to act at a point on a body
Concentrated Force
First Law of Motion
An object at rest or in motion will remain in this state unless a force acts on it
Second Law of Motion
Force of an object is directly proportional to the mass and acceleration. F=ma
Third Law of Motion
For every action, there is an equal and opposite reaction.
Property of a body that will determine the body’s acceleration under a given force.
Mass
It is the study of energy and forces and their effect on a certain body.
Mechanics
It represents the magnitude of the vector.
Length of Arrow
The angle between the vector and a fixed axis defines the ____________ of the line of action.
Direction
The ___________ of the vector defines the sense of direction.
Arrowhead
