Engineering Science
W. Bolton
- 354 pages
- English
- ePUB (mobile friendly)
- Available on iOS & Android
Engineering Science
W. Bolton
About This Book
Comprehensive engineering science coverage that is fully in line with the latest vocational course requirements
- New chapters onheat transfer and fluid mechanics
- Topic-based approach ensures that this text is suitable for all vocational engineering courses
- Coverage of all the mechanical, electrical and electronic principles within one volume provides a comprehensive exploration of scientific principles within engineering
Engineering Science is a comprehensive textbook suitable for all vocational and pre-degree courses. Taking a subject-led approach, the essential scientific principles engineering students need for their studies are topic-by-topic based in presntation. Unlikemost of the textbooksavailable for this subject, Bill Bolton goes beyond the core science to include the mechanical, electrical and electronic principles needed in the majority of courses.A concise and accessible text is supported by numerous worked examples and problems, with a complete answer section at the back of the book. Now in its sixth edition, the text has been fully updated in line with the current BTEC National syllabus and will also prove an essential reference for students embarking on Higher National engineering qualifications and Foundation Degrees.
Frequently asked questions
Information
Chapter 1
Basics
1.1 Introduction
1.2 Basic terms
- MassThe mass of a body is the quantity of matter in the body. The greater the mass of a body the more difficult it is to accelerate it. Mass thus represents the inertia or âreluctance to accelerateâ. It has the SI unit of kg.
- DensityIf a body has a mass m and volume V, its density Ď is:
- Density has the SI unit of kg/m3.
- 3 Relative density
- Relative density is by what factor the density of a substance is greater than that of water and is thus defined as:
- Since relative density is a ratio of two quantities in the same units, it is purely a number and has no units.
- 4 ForceWe might describe forces as pushes and pulls. If you pull a spring between your hands we can say that your hands are applying forces to the ends of the spring. If there is an unbalanced force acting on an object it accelerates. Force has the SI unit of the newton (N).
- 5 WeightThe weight of a body is the gravitational force acting on it and which has to be opposed if the body is not to fall. The weight of a body of mass m where the acceleration due to gravity is g is mg. Weight, as a force, has the SI unit of N.
- 6 PressureIf a force F acts over an area A, the pressure p is:
- It has the SI unit of N/m2, this being given the special name of pascal (Pa).
1.3 Manipulating equations
- Adding the same quantity to, or subtracting the same quantity from, both sides of an equation does not change the equality.
- Multiplying, or dividing, both sides of an equation by the same non-zero quantity does not change the equality.
- A quantity which is added on the left-hand side of an equation becomes subtracted on the right-hand side.
- A quantity which is subtracted on the left-hand side of an equation becomes added on the right-hand side.
- A quantity which is multiplying on the right-hand side of an equation becomes a dividing quantity on the left-hand side.
- A quantity which is dividing on the left-hand side of an equation becomes a multiplying quantity on the right-hand side.