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Aims of the Course
Aims of the Course
The National 5 Engineering Science course provides progression mainly from the craft, design, engineering and graphics experiences and outcomes. It also builds on some science experiences and outcomes, prior learning in mathematics, numeracy and aspects of technological developments in society. Engineering shapes the world in which we live, by applying elements of technology, science and mathematics to real-world challenges. Engineers play key roles in meeting the needs of society in fields that include climate change, medicine, IT and transport, and it is important there are more young people with an informed view of engineering. The course encourages candidates to become successful, responsible and creative in using technologies and to develop a range of qualities, including flexibility, perseverance, confidence and enterprise.
Candidates develop the ability to:
Apply knowledge and understanding of key engineering facts and ideas
Understand the relationships between engineering, mathematics and science
Apply skills in analysis, design, construction and evaluation to a range of engineering problems
Communicate engineering concepts clearly and concisely using appropriate terminology
Develop an understanding of the role and impact of engineering in changing and influencing our environment and society
Topics
Topics
The Course consists of three mandatory Units:
Electronics and Control – Develop an understanding of electronic control systems. Learners will investigate and explore engineering problems and design, simulate, construct, test and evaluate solutions.
Mechanisms and Structures – Develop an understanding of mechanisms and structures. Learners will explore a range of mechanical and pneumatic systems and design, simulate, construct, test and evaluate mechanical or pneumatic solutions to solve problems.
Engineering Contexts and Challenges – Develop a basic understanding of engineering, and its role and impact on our society and environment. Learners will investigate engineering systems, problems and solutions, involving some existing and emerging technologies, and consider implications relating to the environment, sustainable development and to economic and social issues.
Assessment
Assessment
National 5 – This course will be assessed through a combination of an assignment and a question paper. Learners will apply knowledge and skills from the Units to solve an appropriately challenging engineering problem. The question paper introduces breadth to the assessment. It requires depth of understanding and application of knowledge from the Units.
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Engineering Context & Challenges
Engineering Context & Challenges
· examples of applications of environmental, civil, structural, mechanical, chemical, electrical and electronic engineering· examples of the contribution of branches of engineering to solve engineering challenges, that integrate branches of engineering· varied roles of engineers in designing, implementing, testing and controlling complex systems· examples of social and economic impacts (positive and negative) of engineering· examples of environmental impacts (positive and negative) of engineering· ways in which engineering solutions contribute to tackling climate change· explaining how emerging technologies may provide improved solutions to engineering challenges
Analogue Electronics
Analogue Electronics
· function and purpose within a circuit of: battery, switch, resistor, variable resistor, LDR, thermistor, LED, buzzer, diode, motor, lamp, ammeter and voltmeter· describing the function of a circuit in terms of input, process and output· calculations involving the relationship between voltage, current and resistance (Ohm’s Law)· calculations involving resistors in series and parallel· calculations of voltage, current, and unknown values in a fixed-voltage divider· designing a voltage divider to provide an input signal for a control circuit· interpreting information given of characteristics for an LDR and an NTC thermistor· function of relays· function of a protection diode in an electronic circuit· explaining the switching function of a transistor· operating an electronic control circuit, which includes a variable voltage divider, transistor, relay and output transducer
Digital Electronics
Digital Electronics
· AND, OR and NOT gates and combinations with up to three inputs, using truth tables, logic diagrams and Boolean expressions· examples of using micro controllers in commercial and industrial applications· advantages and disadvantages of micro controller-based control systems, compared to a hard-wired electronic equivalent· using correct symbols (start, stop, input, output, branch and loop) to construct flowcharts showing solutions to simple control programs, involving time delays and continuous and fixed loops· using suitable commands (high, low, for…next, if…then, pause, end (or their equivalents)) to design programs to solve simple control problems, involving time delays and continuous and fixed loops
Programming & Control
Programming & Control
· systems and sub-system diagrams· function of a system in terms of input — process — output and feedback loops· open- and closed-loop control· interaction of sub-systems
Mechanisms & drive systems
Mechanisms & drive systems
· motion in mechanical systems: rotary, linear, reciprocating and oscillating· simple gear train systems, idler gears, diagrams and conventions for representation· compound gear trains· calculating speed (velocity) ratio of simple and compound gear trains· the effects of friction in drive systems· appropriate British Standards symbols
Structures & Forces
Structures & Forces
· examples of effects of a force (tensile and compressive)· concurrent forces and equilibrium· using triangle of forces and free body diagrams· non-concurrent forces and parallel forces· moment of a force· calculations involving the principle of moments· balance beam, simply-supported beam and reaction forces· selecting appropriate material for a given application, with justification· calculating the relationship between direct stress, force and area· calculating strain
Pneumatics
Pneumatics
· symbols and operation of standard pneumatic components (restrictor, uni-directional restrictor, reservoir, 5/2 valve and actuators: diaphragm and solenoid)· pneumatic time delay circuits· calculating relationships between force, pressure and area in single-acting and double-acting cylinders· controlling speed and force
Energy
Energy
· applying the law of conservation of energy· calculations involving forms of energy (kinetic, potential, electrical and heat)· energy transfers, losses and transformations in a system· energy audits and calculation of overall efficiency· applied calculations involving efficiency, work done and power using the energy formula.
Homework
Homework
Pupils will be given homework at regular intervals. This homework will be related to the topic of work that they are undertaking at the time and will also act as useful revision for the final exam.
Revision Textbook
Revision Textbook
BrightRedStudy Guide - National 5 Engineering Science
Useful Web Links
Useful Web Links
TechnologyStudent.com - www.technologystudent.com
Yenka free software - www.yenka.com
Picaxe editor software - www.picaxe.com
Tinkercad circuit and simulation - www.tinkercad.com
logic lab Pneumatic sim software - www.logiclab.hu
Leads On To
Leads On To
This course will prepare pupils to undertake the following courses
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