Twenty bite-size snippets of key information relating to Electrical Principles / Science. Useful for revision and posters. It includes the following: Cells & Batteries: The difference between them Producing Heat: The effect of current flowing through a resistance Resistors in series: Example showing how total series resistance is calculated **Resistors in parallel: **Example showing how total parallel resistance is calculated **Resistors in parallel 2: **Example showing an easier way of calculating total parallel resistance Capacitor voltage ratings: Explains the effect on voltage rating for capacitors connected in series and parallel Capacitors in series: Examples showing how total series capacitance is calculated **Capacitors in series 2: ** Example showing an easier way of calculating total series capacitance Capacitors in parallel: Example showing how total parallel capacitance is calculated Charge in capacitors: Example showing how the stored charge is calculated RC Timing: Showing how the RC time constant is calculated **Magnetism: **Applications of soft iron, steel and copper **Induction: **Gives a brief description of mutual induction, self induction and dynamic induction **Transformers: **Labeled diagram of transformer and example calculation showing how secondary voltage is calculated **Self induction: **Explanation of self induction and example of calculating EMF Capacitor theory: Showing how capacitance is calculated if the physical characteristics are known Force, Mass and Acceleration: Example of F = m x a **Inductive and Capacitive Circuits: **Brief description on current and phase in capacitors and inductors **SI Units: **A table showing common electrical units **Formulae: **A table showing common electrical formulas

Ten colour codes exercises, students to colour in the resistors to represent the values given Worksheets 1 to 5: Some bands are already coloured in Worksheets 6 to 10: All bands are to be coloured in (some unusual values also included)

A comprehensive independent learning task for AS / A-Level Systems and Control students. A great tool for assessing students knowledge. It includes 18 pages of questions which require answers to be given in the form of written response, calculations, the drawing of circuit symbols and circuits. The main topics include: Conductors, Insulators and Semiconductors Resistors, Resistance, Ohm’s Law, Potential Dividers and Series Circuits Capacitors and RC Circuits Input / Output Circuits Logic Gates Pulse Generators (Astable and Monostable)

This Design and Make project involves students building a “stylophone” style musical keyboard. The package consists of: A 15 page workbook Scheme of work PCB Design to allow for the etching of the circuit board - for a more detailed Circuit Wizard PCB design file please email: ed@clarvis.co.uk The workbook guides learners through the design and manufacture of the project. Pages include circuit diagrams, PCB layout and component lists, areas for sketching case design ideas and for evaluations. Additional exercises are included relating to the identification of components and tools. The project uses 5-band resistors, a sheet is included for students to identify the correct values. The casing can be made to any design you wish but the workbook shows shows outline plans for a laser cut acrylic top cover. The SOW is simple & editable to your own needs.

A collection of 15 colourful posters showing formulae used in Electrical and Electronic Engineering. Inlcudes transposed versions of formula and diagrams. The resource is prepared for level 3 studies. Transformer ratios Inductive reactance Capacitive reactance Impedance Charging and discharging capacitors (time constant and instantaneous voltages Current & voltage in an RC circuit - with graphs Current & voltage in an RL circuit - with graphs Inductance of a coil Capacitance Resistance of a conductor (using resistivity) Resonance in LC circuits Three-phase circuits (Star connected) Three-phase circuits (Delta connected) Single phase quantities (peak, rms etc)

A 32 page workbook consisting of 32 worksheets. It was originally designed as a revision activity for my Year 11 GCSE Electronic Products students. It can also be used as a classroom resource. Advantages and disadvantages of different power sources Battery types Input and output devices Switch types Calculating resistor values Resistor labeling conventions Resistor preferred values (E12) Resistor preferred values (E24) Potential dividers Potential divider calculations x2 Potential dividers with LDRs and thermistors LED limiting resistor calculation x2 Comparators Capacitor types Calculating RC time constants 555 Astable circuit 555 Astable calculations x2 555 Monostable circuit 555 Monostable calculations Diodes Thyristors NPN Transistors Darlington transistors Signal types (analogue & digital waveforms) Buffers and NOT gates AND gates and OR gates NAND gates and NOR gates XOR gates and combined logic gates

A mini project involving the soldering together of a simple transistor based astable multivibrator causing two LEDs to flash alternatively. Students can investigate the effects of changing capacitance values. The circuit is designed for BC548 and BC108 transistors. I have used the circuit to allow students to develop their soldering skills and then to investigate the operation of the circuit. It can could also be used as the basis of other projects which require flashing LEDs. A PCB design is provided in the powerpoint. A Circuit Wizard file can be also be forwarded by emailing ed@clarvis.co.uk)

I had a class who found it difficult to organise themselves when it came to tidying up at the end of a practical lesson. I produced these tags which are laminated and then attached to students’ aprons with safety pins. They are arranged into teams with a choice of six responsibilities for each member.

This resource is based on the construction of training board using the guide provided. A ten page workbook guides students through practical activities to investigate the function of various commands. A PCB design and construction design sheet is provided to allow the manufacture of the training board by students or technician. The project is based on a PICAXE 18 microcontroller. A PCB design is provided but for a copy of the PCB layout in CWZ format please contact: ed@clarvis.co.uk (TES does not allow the attachment of these files), with a bonus 8pin and 18pin PICAXE download PCB. The training board consists of: 4 coloured LEDs connected to outputs A piezo sounder Two push switches connected to digital inputs A reset switch An LDR connected to analogue input A thermistor input connected to analogue input A potentiometer connected to analogue input The course workbook covers the following learning objectives: Part 1: Introduction Know what PIC stands for Know the advantages of a PIC over a conventional circuit Know how PICs can be programmed Part 2: Transducers and signal types Know the difference between an input transducer and an output transducer Know the difference between a digital and analogue signal Know which transducers use analogue signals Know which transducers use digital signals Part 3: Turning things on and off Know how to use the HIGH command Know how to use the LOW command Know how to use the TOGGLE command Know how to use the WAIT command Know how to use the PAUSE command Part 4: Using the PINs command Know the advantage of the PINS command Know how to use the PINS command Part 5: Making decisions Know how to use the IF command Part 6: Subroutines Know the advantages of using subroutines Know how to write a program using subroutines Know how to use the GOSUB command

A lesson to introduce different fruits from around the world through sensory testing. Opportunity to discuss topics such as nutrition and healthy eating. Originally planned for a group of Y8 students with SEN. The resource consists of: A detailed lesson plan Animated powerpoint which shows fruit flying from countries of origin to the UK when clicked Images of friends to be cut out (and laminated) 8x A4 size pictures of fruits with name and flag identifying country of origin

This resource includes: An A3 seasonality table for UK vegetables A blank seasonality table Eleven images of fourteen different vegetables that can be cut out and pasted into the correct locations to produce a seasonality table. The purpose of the activity is for students to work in groups to record the seasonality of a range of ingredients. It could also be used to plan a dish depending on the current season and available vegetables. Similar resources are also available for fruits & meats

This resource includes: An A3 seasonality table for meats available in the UK A blank seasonality table Images of animals that can be cut out and pasted into the correct locations to produce a seasonality table The purpose of the activity is for students to work in groups to record the seasonality of a range of ingredients. It could also be used to plan a dish depending on the current season and available meats. Similar resources are also available for fruits & vegetables

This resource includes: An A3 seasonality table for UK fruits A blank seasonality table Eleven images of fourteen different fruits that can be cut out and pasted into the correct locations to produce a seasonality table The purpose of the activity is for students to work in groups to record the seasonality of a range of ingredients. It could also be used to plan a dish depending on the current season and available fruits. A similar resource is also available for vegetables & meats

Print and cut out the dominoes which consist of an image of a component and a description of another component. Students to align the dominoes in sequence so the description matches the appropriate adjacent image. The resource contains two separate sets: Set 1: Input and output components Set 2: Passive and active components

Twelve pages of notes based on the function of combinational logic circuits. Examples of combinational circuits are given and explanations of how to write truthtables and express logic functions using Boolean Algebra. The notes show the effect of combining a variety of logic gates and how logic gates. Combining two NOT gates to make a buffer Combining AND, OR and XOR gates with a NOT gate Writing truthables Multiple input AND and NAND gates Multiple input OR and NOR gates Multiple AND gate circuits Multiple OR gate circuits Combining AND, OR and NOT gates A note on algebra Inverting inputs The magical NAND gate - Combining NAND gates to form other gates The magical NOR gate - Combining NOR gates to form other gates Note: PART 1 is available to download as an introduction to logic gates.

A workbook to introduce students to aspects of health & safety in the workshop and work environment. It includes: Declaration front sheet Identifying chemical safety signs Identifying hazard signs Identifying mandatory signs Identifying prohibition signs Identifying safe condition / advisory signs Identifying PPE and their use Identifying workshop tools (x3) Identifying hazards - two very simple risk assessments

Seven pages of notes relating to logic gates. Building from the basics of the difference between analogue and digital signals and how logic levels can be represented by voltages. Circuit symbols, boolean expressions and truth tables are explored. This resource is an introduction to PART 2 which covers concepts of combinational logic. Logic and voltage levels Logic gates Logic gate symbols AND, OR and XOR gates NAND, NOR and XNOR gates NOT gates Propagation delay

Images showing the layout of 8pin DIL sockets and how they relate to 741 Op-Amp.

Sheet to record assessment of practical activities. FIles provided in PDF and PUB format to allow for editing.

8 flashcards to cut out of PPE equipment. Powerpoint provided with description of each. Students to place in order on worksheet provided. Resources also available on TES for download on the identification of tools and equipment - (23 tools and 40 pieces of electrical equipment)