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Ana Lesson Plan 1

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  [Type text] LESSON PLAN Unit Education : Senior High School Classes / Programs / Semester : XII / IPA / 2 Subjects : Physics Topic : Magnetic Force Time allotment : 2 × 45 minutes ( 1 meeting ) A.   Main Competencies MC 1 : Living with and practice the teachings of their religion. MC 2 : Develop behavior ( honest, discipline, responsibility, caring, polite, friendly environment, mutual assistance, cooperation, peace-loving, responsive and pro-active ) and showed an attitude as part of the solutions to the nation's problems in interacting effectively with the environment social and nature as well as in placing itself as a reflection of the nation in the association world. MC 3 : Understand and apply knowledge of factual, conceptual, procedural, in science, technology, arts, culture, and humanities with an insight into humanity, national, state, and civilization-related phenomena and events, as well as applying procedural knowledge in a specific field of study in accordance with the talent and passion for solving problems. B.   Basic Competencies and Indicators 1.1   Increase faith by realizing the relationship regularity and complexity of nature and the universe to the greatness of God who created it. 2.1   Demonstrate scientific behavior ( curious; objective; honest; meticulously careful; diligently; carefully; responsible; open; critical; creative; innovative and caring environment ) in their daily activities as a form of implementation of the attitude in conducting experiments and discussion. 3.6 Describe induction and magnetic force on a variety of technology products 1.   Investigate the effect of the current, the current direction, and length of the wire to the magnitude and direction of Lorentz Force  [Type text] 2.   Formulateas mathematics function of the relationship between the magitude of the current, length of the wire, and magnitude of magnetic induction to the direction and magnitude of Lorentz force 3.   Identify direction of Lorentz force/magnetic force on the two current-carrying wires C.   Learning Objectives   a.   After doing a simple experiment, students are able to Investigate the effect of the current, the current direction, and length of the wire to the magnitude and direction of Lorentz Force correctly b.   After done some class discussion, students are able to Formulate as mathematics function of the relationship between the magitude of the current, length of the wire, and magnitude of magnetic induction to the direction and magnitude of Lorentz force correcly c.   After done some group discussion, students are able to Identify direction of Lorentz force/magnetic force on the two current-carrying wires correctly D.   Teaching Materials  (APPENDIX 1 ) E.   Methods of Learning   1.   Approach : Experiental Teaching Learning ( CTL ) 2.   Methods : Discussion group, experiment F.   Media , Tools and Learning Resources   1.   The Media : white board. Laptop, and projector 2.   Equipment and materials : conductor wires, amperemeter, power supply, pulleys 3.   Sources study : Books and worksheets. G.   Learning Activity   Event Details Event Time Introduction  1.   Studentsanswer a question about previous competency that ismagnetic field arround the current-carrying wires    Teacher describe a current-carrying wire with pointing up direction, the student asked to define the direction of the magnetic field around it.    Expected answer is if the current flowing in a straight wire leads to the top, then the direction of magnetic field is enter the paper 10 minutes  [Type text] 2.   Aperseption    The teacher give a question: At the magnet bar, if two samemagneic poles brought near the magnets repel each other, and if that is different poles brough near the magnet attract each other. Does this also happen to the two current-carr ying wires? Observing Students observe Lorentz force experiment video clip.    First video is describing a glass contain solution of baking soda and water that connected to the electrode. On the bottom of glass is placed magnets. The students observe the movement of the foam in the glass    The second video is an animation that describes the movement of the U-shaped current-carrying wire is brought near the magnet Questioning 1.   What is the cause of the movement of foam in the first video and the movement of U-shaped current carrying wire in the second video?    The answer is either the foam movement or the movement of the wire indicates the existance of a force acting on the wire when the wire is electrified. Forces acting on the so-called magnetic force or Lorentz force 2.   How is the effect of the current, the current direction, and length of the wire to the magnitude and direction of Lorentz Force?   Experimenting The students do simple experimento investigate:    The relationship between the magnitude of the current with Lorentz force on the the two of current-carrying wires      The relationship between the current direction with 60 minutes  [Type text] the Lorentz force      The relationship between the distance of two current-carrying wires with the Lorentz force  Associating Each group discuss and make conclusions from the experimental data Communicating 1.   Each group is given a maximum of 3 minutes to present the result of discussion 2.   Student conclude that: Curved wire conductor showed the presence of the Lorentz force on both wire, Lorentz force in the form of attractive force when the currents in both wires is in the same direction, otherwise a repulsive force when the currents in both wires is in the opposite direction, if the current in the wire is increased then the Lorentz force will be also increase, if the separation distance between the two wires is increased then the Lorentz force will decrease 3.   Along with teacher, the student discuss mathematics function of the magitude of the current, length of the wire, and magnitude of magnetic induction to the direction and magnitude of Lorentz force  4.   Along with teacher, the student identify direction of Lorentz force/magnetic force on the two current-carrying wires   Cover The teacher give confirmation abaout the result of experiment, mathematics function of Lorentz Force, and the direction of Lorentz of two current-carrying wires 20 minutes H.   Assessment  1.   Technique and FormInstrument Technique Form Instrument Affective  Observations attitude The observations attitude Psychomotor  performance test Rubric performance appraisal
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