Schematic of a simple transformer with two coils wound around a. Tes global ltd is registered in england company no 02017289 with its registered office at 26 red lion square london wc1r 4hq. Free support resources for physics for you 5th edition this page is being updated regularly with free support resources to use alongside gcse physics for you 5th edition. Please practice handwashing and social distancing, and check out our resources for adapting to these times.
Nc voltsmetre using coulombs law we can now evaluate the electric field due to a point charge. The catapult effect motor effect is used to make a simple electric motor spin round. Electric motor produced by the national stem centre and the institute of physics, this video shows a simple method for making an electric motor using a battery, strong magnets and a copper coil. Introduction to experimental physics by fretter, william b. Explain how electric motors, generators, and transformers work. Finally, a comparison between different motors is presented. Place a currentcarrying conductor in an external magnetic field perhaps between two bar magnets, and the fields will push against each other. Notice that as the coil rotates the forces on it remain the same but reverse in direction as the coil rotates and the current direction through the coil changes. This is where teaching and learning resources can be downloaded and added. Revised national curriculum edition of gcse 9780748762361. Rotational energy is a form of kinetic energy electric motors have a wide variety of uses how does a simple electric motor work the catapult effect motor effect is used to make a simple electric motor spin. The diagram shows a simple motor using direct current.
Physics 4 laboratory the electric motor prelab exercise please read the procedure section and try to understand the physics involved and how the experimental procedure works. Physics notes form 3 free download kcse revision notes pdf. Pearson edexcel level 1level 2 gcse 9 1 in physics 1ph0. Electric motors and loudspeakers both use electromagnets. Kirchhoffs laws, node and mesh analysis, deltastar and stardelta transformations. It allows students to investigate flemings left hand rule and the forces generated in an electric motor. Gcse science physics 91 the electric motor youtube. Understand why a force is exerted on a currentcarrying wire in a magnetic field, and how this effect is applied in simple d.
When creating a force, use flemings left hand rule to determine in which. Electric motors, which convert electrical energy into mechanical. Current this is a measure of the flow of electrons around a circuit measured in amperes or amps a voltage this is a measure of how much energy the electrons are carrying. Transients in rl, rc and rlc circuits with dc excitation. The electric motor electromagnets and motors gcse physics. The aqa gcse science textbooks are in the aqa approval process. The features the perfect grounding for students intending to take their studies to a more advanced level, explaining physics contains all the essential concepts required by students studying physics within any. Electric motors electromagnets higher edexcel gcse. You will be provided with a kit of parts and equipment from which you will be challenged to build a working electric motor. The torque on the coil varies, being a maximum when the plane of the coil is in the same direction as. When an electric current passes through a wire, it creates a magnetic field around the wire. Download principle of engineering physics vol 1 by a s. Jun 9, 2015 kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field. The tricky bit is to supply electric current to a rotating coil, and to maintain a steady, continuous torque.
They attract other pieces of iron bought close to them with a magnetic force. How to make a simple electric motor with images fun. Measured in degrees o c or kelvin k thermal energy is measured joules j things are cold because the average energy is low things are hot because the average energy is high temperature. Physics 4 laboratory the electric motor dartmouth college. Presenting current issues in electric motor design, installation, application, and performance, this second edition serves as the most authoritative and reliable guide to electric motor utilization and assessment in the commercial and industrial sectors.
Gcse physics electromagnetism 3 the electric motor. Download if you would like to download a resource then click on the relevant attachment at the bottom of the page. You need to be a registered member free to see these links. An electric current in a conductor produces a magnetic field. Some of the material is first year degree standard and is quite involved for both for maths and physics. However, remember that forces come in pairs the permanent. A small electric motor vibrator is connected to cause the disturbance which produces waves. Take two bar magnets and keep the poles facing each other with a small space in between. Current, voltage and resistances the main problem with electricity is that everyone uses it all the time, so they think they know how it works already. Gcse revision notes physics revision notes electricity 1. This gcse physics electricity quiz takes a look at the motor effect. It can be easy, particularly if you get the main terms right. Single phase emf generation, average and effective values of sinusoids, j operations, complex representation of impedance, phasor diagrams, power factor.
Electric motors electromagnets higher edexcel gcse physics. Electricity can be generated in large power stations from. Covering topics ranging from motor energy and efficiency to computeraided design and equipment selection, this reference assists. Follow the simple directions to build an electric motor, then investigate how a few simple changes to the magnets in the motor can greatly effect the motors.
Edexcel international gcse physics student book sample chapter. Fossil fuels coal, natural gas and oil which were formed hundreds of million years ago and will eventually run out. How is electromagnetism used in our everyday lives. Equivalent to american high school diploma subtopics. This approach is based on the salters horners advanced physics shap project. A simple electric motor can be built using a coil of wire that is free to rotate between two opposite magnetic poles. Electricity, simple circuits flashcards in gcse physics. When power flows through the first circuit 1, it activates the electromagnet brown, generating a magnetic field blue that attracts a contact red and activates the second circuit 2. Teachers may select the approach that best meets the needs of their students. These are made by coiling wire carrying a current around a magnetic core. To better understand, imagine the following situation. The book explores all of the widelyused modern types of motor and drive, including conventional and. A gcse revision video designed to help you learn about the electric motor, force in a current carrying wire and interactions between magnetic fields. Buy principle of engineering physics vol 1 by a s vasudeva pdf online.
What is an electric motor an electric motor is a device that transfers electrical energy into rotational energy. Gcse, additional gcse, igcse and international cieedexcel o level. Explaining physics emphasizes the applications and social effects of physics, and extends its treatment of energy and electronics. Using a simple motor as a generator if a simple motor is turned to produce electricity, the split ring commutator will change the current direction every half turn. The simple electric motor physics homework help, physics. This topic covers practical electric circuitry of o level physics. Efficiency of an electric motor calculation gcse keywords. A metal coil sits in a magnetic field and is connected flemings lefthand rule can be used to explain why the coil turns. Further development means that additional free materials may also be added in the future. Electric motors revision and coursework igcse physics.
Before discussing the motor effect it is important to gain an understanding in magnets and magnetic field. Gcse physics electromagnetism medium demand questions questionsheet 12 a a simplified electric motor consists of a coil of wire connected to a battery and positioned between two magnets see diagram. When the switch is closed the coil spins on its axle. Pdf basic electrical engineering 1st year ebook, notes. The working of an electric motor is based on the fact that a current carrying conductor produces a magnetic field around it. Electric motors and drives is intended for nonspecialist users of electric motors and drives, filling the gap between theorybased academic textbooks and the more prosaic handbooks, which provide useful detail but little opportunity for the development of real insight and understanding. Construct a simple spectrometer, from a cd or dvd, and use it to analyse common light. Electricity notes gcse physics this means that if you want a current to flow you must put a battery in the circuit.
In a motor, the wire is wound around a central block called an armature. The size of the electric current is the rate of flow of electrical charge. If the magnetic field from the wire is placed in another magnetic field, they interact, causing the wire to move. Here are two simple animations illustrating how relays use one circuit to switch on a second circuit.
Electric power and energymeasurement of electrical power an. An atom consists of protons positive, neutrons neutral, and electrons negative. Magnets are materials normally with iron in them that produce a magnetic field. Useful, wasted, power rating, watts course overview. Gcse electricity revision of the motor effect in wires. Electric motor parts of motor, working of electric motor. Electromagnets and motors flashcards in gcse physics. Please dont give me a page to read, just at most 23 paragraphs. The wire is pushed in the opposite direction if the direction of the current through it is reversed. Content additional notes from dr c electric current is a flow of electrical charge. In an electric motor the magnetic force does all the work. While the conductor is pushed, a conventional current flows in it and the conductor experiences a magnetic force opposite to. Motors, generators, and transformers hs physics openstax cnx. A complete treatise on the construction and management of electrical apparatus as used in electric lighting and the electric transmission of power.
This tutorial looks at the electric motor, flemmings left hand. Electromagnets electromagnets and motors gcse physics. Instead of generating alternating current see the previous page the current is kept positive giving the output shown below compare this with the output shown for direct current. Students will construct electric motors, and through qualitative analysis. A simple motor can be built using a coil of wire that is free to rotate between two opposite magnetic poles. It works on the principle of the interactions between the magnetic fields of a permanent magnet and the field generated around a coil conducting electricity. It consists of a rectangular coil of wire mounted on a spindle so that it can rotate between the curved pole pieces of a ushaped permanent magnet. Practical electric circuitry mini physics learn physics. The text that was researched and compiled contains explanations of the motor parts, theory about electromagnetism and how current is used to make an electrical motor rotate. If a wire carrying a current is placed inside this magnetic field, a force is produced. An electrical motor is a device that converts electrical energy to mechanical energy.