ENGINEERING MECHANICS Flashcards
He stated the fundamental principles of mechanic.
ISAAC NEWTON
An object at rest remains at rest, except acted upon by an external force
1ST LAW OF MOTION
LAW OF INERTIA
The rate of change of momentum of a body is directly proportional to the external force applied to the body
2ND LAW OF MOTION
LAW OF ACCELERATION
LAW OF MOMENTUM
For every action, there’s an equal and opposite reaction
3RD LAW OF MOTION
LAW OF ACTION & REACTION
LAW OF INTERACTION
It can be defined as that science which DESCRIBES AND PREDICTS the conditions of rest or motion of bodies under the action of forces.
MECHANICS
It is a physical science, since it deals with the STUDY OF PHYSICAL PHENOMENA.
MECHANICS
It is the physical science concerned with the BEHAVIOUR OF BODIES that are acted upon by forces.
MECHANICS
It is defined as a definite AMOUNT OF MATTER the part of which are fixed in position relative to each other.
RIGID BODY
It is the study which deals with the condition of bodies in EQUILIBRIUM subjected to external forces.
STATICS
It is also a BRANCH OF MECHANICS in which the forces and their effects on the bodies in MOTION ARE STUDIED.
DYNAMICS
It refers to the process of ASSOCIATING NUMBERS with physical quantities and phenomena.
SYSTEM OF MEASUREMENT
It is more like a COLLECTION OF UNITS of measurement and rules relating them to each other.
SYSTEM OF MEASUREMENT
It is a ‘push or pull’ upon an object resulting from the object’s interaction with another object.
FORCE
It only exist as a result of an interaction.
FORCE
When two or more forces or moments are COMBINED, the combination
RESULTANT
It refers to the number of force which REMAIN in SAME PLANE.
COPLANAR FORCE SYSTEM
It stated as the number of force in a system which REMAINS in SINGLE PLANE.
COPLANAR FORCE SYSTEM
It refers to the number of forces which interest at a COMMON POINT with their lines of action.
CONCURRENT COPLANAR FORCE SYSTEM
It is the SIMPLEST coplanar force system to resolve to determine the resultant force.
CONCURRENT COPLANAR FORCE SYSTEM
It refers to the number of forces which are PARALLEL to each other with their lines of action.
PARALLEL COPLANAR FORCE SYSTEM
This force system is mostly used in the ANALYSIS OF SIMPLE BEAMS with number of point loads.
PARALLEL COPLANAR FORCE SYSTEM
It refer to the number of forces which are NOT parallel and DO NOT LIE at the common point with their lines of action.
NON-CONCURRENT NON-PARALLEL FORCE SYSTEM
It is NOT the simplest coplanar force system to resolve to determine the resultant force when compared to concurrent and parallel coplanar systems.
NON-CONCURRENT NON-PARALLEL FORCE SYSTEM
Refers to the number of forces which DO NOT REMAIN in same plane.
NON-COPLANAR FORCE SYSTEM
It stated as the number of forces in a system which REMAINS IN DISSIMILAR PLANES.
NON-COPLANAR FORCE SYSTEM
These are forces that act between two objects that are physically TOUCHING EACH OTHER.
CONTACT FORCES
Examples of contact forces
Reaction force
Tension
Friction
Those forces that act between two objects that are NOT physically touching each other.
NON-CONTACT FORCES
Examples of non-contact forces
Magnetic force
Electrostatic force
Gravitational force
The physical quantities which are specified with the magnitude or size ALONE.
SCALAR QUANTITY
It is ONE-DIMENSIONAL measurement of quantity like mass or temperature.
SCALAR QUANTITY
A physical quantity which has force but NO DIRECTION.
SCALAR QUANTITY
It refers to those physical quantities which are characterized by the PRESENCE OF BOTH magnitudes as well as direction.
VECTOR QUANTITY
It is indeed a quantity that REQUIRES BOTH OF MAGNITUDE AND DIRECTION in order to identify the right quantity.
VECTOR QUANTITY
Mass is a physical quantity that has a UNIT of
KILOGRAMS (kg)
