Mechanics
Faculty of Engineering and Technology (FET)
PPH 0125 Mechanics Foundation in Engineering
ONLINE NOTES
Chapter 1 Physical Quantities
Faculty of Engineering and Technology, Multimedia University, Jalan Ayer Keroh Lama, Bukit Beruang, 75450 Melaka, Malaysia.
PPH0125
MECHANICS
Contents 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Introduction to SI Units. Basic Quantities Derived Quantities Conversion of Units Scalar and Vector Quantity Factor of ten Simplification (Standard Prefixes) Dimension: Homogeneity of Physical Equations. Vectors. Component of a vector. Vector addition and Subtraction. Graphical Methods. Component Methods. Dot Product and Cross Product.
Mind Map
OBJECTIVES
__________________________________________________________________________________ FET 2013/14 PHYSICAL QUANTITIES 1/ 18
PPH0125
MECHANICS
Upon completion of this chapter, you should be able to: 1) 2) 3) 4) 5) 6) list the base quantities and their SI units. use common standard prefixes explain the advantage of and apply dimensional analysis and unit analysis. distinguish between scalars and vectors. Add and subtract vectors graphically and by the component method. determine the dot and cross products of given vectors.
1.0
INTRODUCTION TO SI UNITS
A physical property that can be measured is called a physical quantity. The most commonly encountered physical quantities are length, mass, time, current, temperature, light intensity and amount of substance. These seven quantities are known as the base quantities. Other physical quantities is described by a numeral value and a combination of these quantities. A physical quantity is described by a numerical value and a unit. A unit is the standard size for a physical quantity. Different units can be used to describe the same quantity. For example, the height of a person can be expressed in feet and inches, or in meters and centimeters. The units of a certain quantity can be converted from one system of
PPH 0125 Mechanics Foundation in Engineering
ONLINE NOTES
Chapter 1 Physical Quantities
Faculty of Engineering and Technology, Multimedia University, Jalan Ayer Keroh Lama, Bukit Beruang, 75450 Melaka, Malaysia.
PPH0125
MECHANICS
Contents 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Introduction to SI Units. Basic Quantities Derived Quantities Conversion of Units Scalar and Vector Quantity Factor of ten Simplification (Standard Prefixes) Dimension: Homogeneity of Physical Equations. Vectors. Component of a vector. Vector addition and Subtraction. Graphical Methods. Component Methods. Dot Product and Cross Product.
Mind Map
OBJECTIVES
__________________________________________________________________________________ FET 2013/14 PHYSICAL QUANTITIES 1/ 18
PPH0125
MECHANICS
Upon completion of this chapter, you should be able to: 1) 2) 3) 4) 5) 6) list the base quantities and their SI units. use common standard prefixes explain the advantage of and apply dimensional analysis and unit analysis. distinguish between scalars and vectors. Add and subtract vectors graphically and by the component method. determine the dot and cross products of given vectors.
1.0
INTRODUCTION TO SI UNITS
A physical property that can be measured is called a physical quantity. The most commonly encountered physical quantities are length, mass, time, current, temperature, light intensity and amount of substance. These seven quantities are known as the base quantities. Other physical quantities is described by a numeral value and a combination of these quantities. A physical quantity is described by a numerical value and a unit. A unit is the standard size for a physical quantity. Different units can be used to describe the same quantity. For example, the height of a person can be expressed in feet and inches, or in meters and centimeters. The units of a certain quantity can be converted from one system of