* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download TITLE OF LEARNING OBJECT What are the physics
Survey
Document related concepts
Speed of gravity wikipedia , lookup
Elementary particle wikipedia , lookup
Introduction to gauge theory wikipedia , lookup
Time in physics wikipedia , lookup
Magnetic field wikipedia , lookup
Superconductivity wikipedia , lookup
Magnetic monopole wikipedia , lookup
Maxwell's equations wikipedia , lookup
Electromagnet wikipedia , lookup
Fundamental interaction wikipedia , lookup
Electric charge wikipedia , lookup
Field (physics) wikipedia , lookup
History of electromagnetic theory wikipedia , lookup
Aharonov–Bohm effect wikipedia , lookup
Lorentz force wikipedia , lookup
Transcript
SUBJECT SCIENCE TITLE OF LEARNING OBJECT GRADE 11th GRADE LEARNING UNIT HOW ARE WE TRANSFORMING OUR PLANET? What are the physics theories needed for constructing a Maglev train? CURRICULAR AXIS Our physical environment STANDARD To explain the forces between bodies as interactions determined by electric charge and COMPETENCIES mass. LEARNING OBJECTIVES 1. To interpret and establish the relationships between electric and magnetic phenomena. 2. To create graphic representations of the manifestations of electric and magnetic fields. 3. To describe electromagnetic phenomena and their relationships to other physical phenomena. SKILLS/ KNOWLEDGE LEARNING FLOW Sk 1: To establish the relationships between Newton's law of universal gravitation and Coulomb's law. Sk 2: To establish the relationships between magnetic field, electric field, and the force affecting charged particles in movement and at rest. Sk 3: To represent electric and magnetic fields through field lines. Sk 4: To explain how electric current is generated from a variable magnetic field. Sk 5: To explain the relationship between gravitational field and electric field. Introduction Objectives. The teacher introduces the objectives and establishes additional ones if needed. Development ASSESSMENT GUIDELINE Stage Introduction Learning flow Introduction Development Development Activity 1. Electric forces (Skill: 1 y 2). Activity 2. Magnetism (Skill: 3, 4 y 5). Abstract Homework Evaluation Glossary Vocabulary box Bibliography The student will calculate the force attracting or repelling two objects, and establish the relationship between electricity and magnetism. Teaching/Learning Activities Recommended Resources The teacher will present the Maglev train as an example in order to explain concepts of electricity, magnetism and the Interactive relationship between the two. resources Animation Sk 1: To establish the relationships between Newton's law of universal gravitation and Coulomb's law. Sk 2: To explain the relationship between gravitational field and electric field. Electric forces PThe teacher will introduce the subject matter by showing the formula for Newton's law of universal gravitation. Within this context, an analogy to the force of attraction between two electrically charged particles will be made. Learning activity Interactive resources Animation Fill in the missing words in the following sentences: Coulomb's law establishes a proportion to the ______ between charges. The electric force is much stronger than the ________ force. The coulomb (C) is a unit of measure that determines the number of _________ charging an object. Interactive resources Using Coulomb's law, calculate the forces present on the Image and text following charges and indicate whether they are attractive or repulsive: 𝑞1 = 3𝜇𝐶 𝑞2 = −8𝜇𝐶 𝑟 =2m Answer: -0,054 N attractive. 𝑞1 = 60𝜇𝐶 𝑞2 = 36𝜇𝐶 𝑑 =30mm Answer: 7000 N Repulsive. Student material Remember that… Due to the fact that there are no naturally occurring elements with Interactive resources the charge 1C, we always use fractions, i.e.: Ludic infographic micro-coulomb= 𝜇𝐶 = 1𝐶 × 10−6 nano-coulomb=nC= 1𝐶 × 10−9 pico-coulomb=pC=1 𝐶 × 10−12 Sk 3: To represent electric and magnetic fields through field lines. Sk 4: To explain how electric current is generated from a variable Interactive magnetic field. resources Sk 5: To explain the relationships between gravitational field and electric field. Animation Magnetism The teacher will show that there other forces such as magnetism at work in nature, through examples such as Earth constituting a giant Interactive magnet. The concepts of electric and magnetic fields will also be resources explained. The concepts should be connected, giving way to electromagnetism. The concept of electromagnets will be defined, Image and text and finally the Maglev train will be discussed. Learning activity Match the following concepts: (1) m Magnetis (1) Force generated by the movement of electrically charged particles. (2) Electroma (2) A device generated by electric current. gnet (3) Electric field Abstract Abstract (3) Area determined by the influence of electric forces. An infographic will be used to summarize the relevant information Interactive regarding electricity, magnetism, and the electric and magnetic resources fields. Assignment/ homework Task Annexed in this file. Infographic The homework will be presented to the students. Resource Watch the following video and answer the subsequent questions: Student material [Evans Electric]. (10/02/2008). WORLDS FASTEST TRAINS MAGLEV "capable" of 3,500 km/h [Embedded video]. https://www.youtube.com/watch?v=aIwbrZ4knpg Evaluation What are the advantages of Maglev trains compared to other types of trains? How is magnetic force harnessed for the movement of the train? What are the disadvantages of the Maglev system? The students will be encouraged to take the evaluation in the Interactive Learning Object resources Evaluation Answer the following multi choice questions: 1. Coulomb's law states that the electric force between charged particles is inversely proportional to: A. The charge of the particles. B. The mass of the particles. C. The distance between the particles. Evaluation D. The square of the distance between the particles. 2. Two spheres with equal charge repel one another when separated by distance a. When the distance between them doubles, the force is reduced to: A. B. C. D. 1 1 1 1 / / / / 4 6 9 12 Indicate true or false for the following statements: 3. There are magnets with only one pole. ( ) 4. An electric charge generates an electric field. ( ) 5. In magnetism, equal poles do not repel, as opposed to the case of equally charged electric charges. ( ) Fill in the missing words: 6. An ____________ is a ________ generated by inducing electric ________ through a wire coil. a. field-magnet-current b. magnet-current -electromagnet c. electromagnet-magnet-current d. field-electromagnet-current Glossary Electric field: a vector field that associates to each point in Resource space the Coulomb force experienced by a unit electric charge. text Retrieved on 24/06/2016 from https://en.wikipedia.org/wiki/Electric_field Magnetic field: the magnetic effect of electric currents and magnetic materials. Retrieved on 24/06/2016 from https://en.wikipedia.org/wiki/Magnetic_field Electromagnetism: a branch of physics which involves the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. Retrieved on 24/06/2016 from https://en.wikipedia.org/wiki/Electromagnetism Levitation: the process by which an object is held aloft, without mechanical support, in a stable position. Retrieved on 24/06/2016 from https://en.wikipedia.org/wiki/Levitation Vocabulary box Maglev: a type of high-speed train that runs on magnets supported by a magnetic field generated around the track : from mag (netic) lev (itation). Compass: an instrument for determining directions, as by means of a freely rotating magnetized needle that indicates magnetic north. Coil: a conductor, as a copper wire, wound up in a spiral or other form. Junkyard: a yard for the collection, storage, and resale of junk. Harness: to bring under conditions for effective use; gain control over for a particular end. Retrieved on 25/06/2016 from http://www.dictionary.com Bibliography Annexed 1. Abstract Hewitt, P. (2004). Física Conceptual . México : Pearson Educación. Lewis, T. (2015). What is Magnetism? Liivescience. Retrieved from: http://www.livescience.com/38059-magnetism.html (S.a). (s.a). Electric Field Lines. Physics Clasroom. Retrieved from: http://www.physicsclassroom.com/class/estatics/Lesson4/Electric-Field-Lines