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1st_PRELIM > ENGINEERING MECHANICS > Flashcards

ENGINEERING MECHANICS Flashcards

1
Q

He stated the fundamental principles of mechanic.

A

ISAAC NEWTON

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2
Q

An object at rest remains at rest, except acted upon by an external force

A

1ST LAW OF MOTION

LAW OF INERTIA

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3
Q

The rate of change of momentum of a body is directly proportional to the external force applied to the body

A

2ND LAW OF MOTION

LAW OF ACCELERATION

LAW OF MOMENTUM

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4
Q

For every action, there’s an equal and opposite reaction

A

3RD LAW OF MOTION

LAW OF ACTION & REACTION

LAW OF INTERACTION

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5
Q

It can be defined as that science which DESCRIBES AND PREDICTS the conditions of rest or motion of bodies under the action of forces.

A

MECHANICS

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6
Q

It is a physical science, since it deals with the STUDY OF PHYSICAL PHENOMENA.

A

MECHANICS

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7
Q

It is the physical science concerned with the BEHAVIOUR OF BODIES that are acted upon by forces.

A

MECHANICS

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8
Q

It is defined as a definite AMOUNT OF MATTER the part of which are fixed in position relative to each other.

A

RIGID BODY

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9
Q

It is the study which deals with the condition of bodies in EQUILIBRIUM subjected to external forces.

A

STATICS

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10
Q

It is also a BRANCH OF MECHANICS in which the forces and their effects on the bodies in MOTION ARE STUDIED.

A

DYNAMICS

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11
Q

It refers to the process of ASSOCIATING NUMBERS with physical quantities and phenomena.

A

SYSTEM OF MEASUREMENT

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12
Q

It is more like a COLLECTION OF UNITS of measurement and rules relating them to each other.

A

SYSTEM OF MEASUREMENT

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13
Q

It is a ‘push or pull’ upon an object resulting from the object’s interaction with another object.

A

FORCE

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14
Q

It only exist as a result of an interaction.

A

FORCE

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15
Q

When two or more forces or moments are COMBINED, the combination

A

RESULTANT

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16
Q

It refers to the number of force which REMAIN in SAME PLANE.

A

COPLANAR FORCE SYSTEM

17
Q

It stated as the number of force in a system which REMAINS in SINGLE PLANE.

A

COPLANAR FORCE SYSTEM

18
Q

It refers to the number of forces which interest at a COMMON POINT with their lines of action.

A

CONCURRENT COPLANAR FORCE SYSTEM

19
Q

It is the SIMPLEST coplanar force system to resolve to determine the resultant force.

A

CONCURRENT COPLANAR FORCE SYSTEM

20
Q

It refers to the number of forces which are PARALLEL to each other with their lines of action.

A

PARALLEL COPLANAR FORCE SYSTEM

21
Q

This force system is mostly used in the ANALYSIS OF SIMPLE BEAMS with number of point loads.

A

PARALLEL COPLANAR FORCE SYSTEM

22
Q

It refer to the number of forces which are NOT parallel and DO NOT LIE at the common point with their lines of action.

A

NON-CONCURRENT NON-PARALLEL FORCE SYSTEM

23
Q

It is NOT the simplest coplanar force system to resolve to determine the resultant force when compared to concurrent and parallel coplanar systems.

A

NON-CONCURRENT NON-PARALLEL FORCE SYSTEM

24
Q

Refers to the number of forces which DO NOT REMAIN in same plane.

A

NON-COPLANAR FORCE SYSTEM

25
Q

It stated as the number of forces in a system which REMAINS IN DISSIMILAR PLANES.

A

NON-COPLANAR FORCE SYSTEM

26
Q

These are forces that act between two objects that are physically TOUCHING EACH OTHER.

A

CONTACT FORCES

27
Q

Examples of contact forces

A

 Reaction force
 Tension
 Friction

28
Q

Those forces that act between two objects that are NOT physically touching each other.

A

NON-CONTACT FORCES

29
Q

Examples of non-contact forces

A

 Magnetic force
 Electrostatic force
 Gravitational force

30
Q

The physical quantities which are specified with the magnitude or size ALONE.

A

SCALAR QUANTITY

31
Q

It is ONE-DIMENSIONAL measurement of quantity like mass or temperature.

A

SCALAR QUANTITY

32
Q

A physical quantity which has force but NO DIRECTION.

A

SCALAR QUANTITY

33
Q

It refers to those physical quantities which are characterized by the PRESENCE OF BOTH magnitudes as well as direction.

A

VECTOR QUANTITY

34
Q

It is indeed a quantity that REQUIRES BOTH OF MAGNITUDE AND DIRECTION in order to identify the right quantity.

A

VECTOR QUANTITY

35
Q

Mass is a physical quantity that has a UNIT of

A

KILOGRAMS (kg)

1st_PRELIM (2 decks)

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