This PowerPoint lesson on Magnetising covers creating permanent and temporary magnets, hard and soft magnetic materials, and the practical method for creating electromagnets in the classroom. This is the second (of 8) lessons in this section entitled “Magnetism and Electromagnetism” which is available as a bundle in our shop.

This PowerPoint lesson on Magnets covers the basics on drawing magnetic fields around bar magnets, both on their own and when attracting and repelling each other. There is also a PDF worksheet with three magnet drawings for the pupils to complete. This is the first (of 8) lessons in this section entitled “Magnetism and Electromagnetism” which is available as a bundle in our shop.

This is a complete set of 49 PowerPoints that covers sections A through to G of the Pearson National BTec Engineering (A-Level standard) These PowerPoints are available individually or as bundles by section, but it is heavily discounted in this complete set Every lesson includes a PowerPoint and this entire bundle is designed as a teaching aid for excellent classroom delivery and confidence that the specification has been covered. Many of the lessons also contain a worksheet complete with answers. This bundle includes the following subsections (also available as individual bundles in our shop): Mathematical Methods (11 Powerpoints) Static Engineering systems (3 PowerPoints) Loaded components(3 PowerPoints) Dynamic Engineering system (4 PowerPoints) Lifting machines (4 PowerPoints) Fluid systems (4 PowerPoints) Thermodynamics (5 PowerPoints) Static and direct current electricity (3 PowerPoints) DC circuits (4 PowerPoints) Magnetism (2 PowerPoints) Electromagnetism (3 PowerPoints) Single phase alternating current (3 PowerPoints)

This is an 7 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topic of impedance. This lessons covers the calculations to calculate impedance, starting from resistance, capacitance and inductance. This is the third and final PowerPoint in this section (single phase alternating current) and is also the final lesson in the entire scheme of work (available as a single bundle).

This is an 15 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topic of combining sinusoidal waveforms. This lessons starts with a graphical representation of waveforms for AC voltage, and shows how a resultant wave is formed from two sinusoidal waveforms. This is then extended to a graphical solution method, using vectors for phasors, and then a mathematical method using the cosine and sine rules to add two wave equations together. This is the second PowerPoint in this section (Single phase alternating current). v1.01 (Dec 2021 ) - Minor improvements

This is an 10 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topic of single phase alternating current theory. This lessons revisits the graphical representation of AC voltage changes as a sine wave, and then covers the calculations for the average and root mean squared voltages. This is consolidated with a worked example that shows how the form factor is a constant. This is the first PowerPoint in this section (Single Phase Alternating Current).

This is an 11 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topic of self-inductance and transformers. This lessons covers the calculations from self-inductance, and explanation of the unit “henry” and how it applies to circuits, mutual inductance and transformer design and calculations. This is the fifth and final PowerPoint in this section (Magnetism and Electromagnetic induction).

This is an 8 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topic of DC motors. This short powerpoint is designed to be used alongside a lesson where a DC motor can be examined or where a practical can be performed to create one. This is the fourth PowerPoint in this section (Magnetism and Electromagnetic induction).

This is a 9 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topic of induced electromotive force e.m.f. (emf). This includes an explanation of how a rotating coil creates an AC sinusoidal output and why eddy currents need to be reduced in ferromagnetic cores. This is the third PowerPoint in this section (Magnetism and Electromagnetic induction).

This is an 8 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topic of B-H curves. This PowerPoint includes a description of how to plot a graph of B (magnetic flux density in a material) against H (magnetic field from a solenoid) and then goes into detail about analysing the graph to consider coercivity and hysteresis based on permeability. This is the second PowerPoint in this section (Magnetism and Electromagnetic induction).

This is an 11 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topic of magnetism and solenoids. This PowerPoint includes a description of magnetic strength, magnetic flux density, reluctance, and magnetomotive force. There are several worked examples of the various formulae. This is the first PowerPoint in this section (Magnetism and Electromagnetic induction). v1.01 (Nov 2021 ) - Minor improvements

This is a 6 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topic of Sources of Direct Current (DC). This PowerPoint includes a description of cells (and batteries) including internal resistance, photovoltaic cells, and stabilised AC to DC convertors. This is the seventh PowerPoint in this section (Electricity and circuits) and it builds on the previous lessons, bringing many aspects together including resistance in series and the use of capacitors and Zener diodes. v1.01 (Nov 2021 ) - Minor improvements

This is a 6 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topic of Capacitors in both series and parallel circuits. This PowerPoint includes circuit diagrams and worked examples of the capacitance, current and voltage calculations needed for basic circuits. This is an extension from the earlier lesson where capacitance and capacitors were introduced in detail. This is the sixth PowerPoint in this section (Electricity and circuits).

This is a 10 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topic of Resistors in both series and parallel circuits. This PowerPoint includes circuit diagrams and worked examples of the resistance, current and voltage calculations needed for basic circuits. This is the fifth PowerPoint in this section (Electricity and circuits). v1.01 (18th Nov 2020) - Minor corrections v1.02 (Nov 2021) - Minor improvements

This is a 9 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topics of Diodes in circuits. This lesson covers the three main rectification circuits, complete with animated diagrams to help students understand how they create the DC output from an AC input for bi-wave and full-wave variants. Protection circuits and the use of Zener diodes are also briefly covered, together with an worked example circuit question. This is the fourth PowerPoint in this section (Electricity and circuits).

This is a 14 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topics of Resistors and Resistance. This lesson describes the four main resistor types and applies these to Ohm’s Law. Resistivity calculations are covered which is linked to conductivity. Temperature coefficient of resistance is explained, together with a worked example. Kirschhoff’s laws for voltage and current are also briefly introduced. This is the third PowerPoint in this section (Electricity and circuits).

This is a 14 slide PowerPoint that covers BTec National Engineering (A-Level equivalent) on the topics of Capacitance and Capacitors. It covers the basic formula for calculating farads, for calculating capacitance from the properties of a capacitor, the exponential formulae for charging and discharging a capacitor, and the formula for the energy stored in a capacitor. There are graphs to show the charging and discharging of a capacitor and worked mathematical calculations. This is the second PowerPoint in this section (Electricity and circuits).