Uniform circular Motion
Learning aims |
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Learning objectives |
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Previous learning (background) |
Students already know the Uniform Circular Motion and the main concepts of Dynamics from 9th grade. |
Plan
Time |
Content and teacher activity |
Learner activity |
Formative assessment (On-going assessment) |
Learning materials and resources |
---|---|---|---|---|
5 |
Explaining a task - revision of first two lessons (motion in one and two dimensions) and playing crossword game
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Working in groups of 4. Solving crossword (Appendix A) Finding Key word to guess lesson topic |
Observing pupils’ work and results during crossword activity Q&A
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Projector, Ipad, activity papers, smart board |
5 |
Schumacher (F1 racer) video (teacher records) Note: Schumacher is the crossword Key word. Schumacher’s problem is he crashed when passing a turn; find the optimum speed to help him |
Watching and guessing the name of new topic in groups |
Q&A
|
Projector, Ipad, smart board, video - https://www.youtube.com/watch?v=NulD8sBZWA0&t=3s |
12 |
Presenting interactive presentation about uniform circular motion, giving hand-outs with new terminology (revision of 9th grade) (Appendix B) |
Watching presentation (Appendix C) and taking notes, solving examples, using hand-outs with new vocabulary |
Observation, Q&A (training terminology)
|
Projector, smart board, PPP from Bilimland.kz (School Subjects – Physics – Upper Secondary – Kinematics – Circular motion) https://bilimland.kz/en/courses/school-subjects/physics/upper-secondary/2-kinematics/lesson/10-circular-motion |
8 |
Solving problems at the blackboard after some solved examples by teacher (Appendix D) |
Working individually and asking for clarification on unclear aspects |
Checking results of solved problems by pupils at the blackboard
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White board, workbook, teacher’s PPP |
6 |
Solving more interactive problems in order to learn the difference between angular and tangential speeds (Appendix E) |
Watching and taking notes, solving examples |
Q&A
|
Projector, smart board, PPP from Bilimland.kz (Physics course – Mechanics – Kinematics – Angular velocity. Angular acceleration) https://bilimland.kz/en/courses/physics-en/mechanics/kinematics/lesson/angular-velocity-angular-acceleration |
2 |
Demonstration of circular motion by rotating a bucket filled with water in it in order to explain centripetal force |
Watching and discussing in pairs |
Q&A
|
Bucket, water, rope |
5 |
Finally solving Schumacher’s problem of finding optimum speed to pass the turn safely (Appendix F)
|
Working in pairs and trying to find optimum speed by taking necessary information from teacher’s PPP |
Q&A, observation
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Projector, smart board, PPP with information of car and road properties (coefficient of friction, radius of turn, mass of the car, gravity) |
2 |
Giving homework: problems from their workbook, find and show one exclusive, extraordinary example from real life of circular motion (Appendix G) |
Taking notes, listening |
Checking homework (next week) |
Projector, smart board, workbook |
Break time |
Feedbacks |
Giving feedbacks to the teacher by writing their comments on stickers and stick them on a board |
Receiving feedback stickers |
Stickers, board |
APPENDIX A
QUESTIONS
1. How do we call change of the position from initial to final position?
2. What is the vector quantity of the speed?
3. Ep=mgX, what is X in formula?
4. Vavg=dX/dM, what is M in formula?
5. The ratio of the change in velocity to the time interval
6. A group of quantities that has only magnitude
7. Acceleration is _________ quantity
8. How do we call maximum distance that is covered by the object by a projectile?
APPENDIX B
TERMINOLOGY
# |
WORD |
TRANSLATION |
1 |
Period |
Период |
2 |
Frequency |
Частота |
3 |
Tangential speed (linear speed) |
Тангенциальная скорость (линейная скорость) |
4 |
Angular speed |
Угловая скорость |
5 |
Centripetal force |
Центростремительная сила |
6 |
Revolution |
Оборот |
7 |
Centripetal acceleration |
Центростремительное ускорение |
8 |
Circumference |
Длина окружности |
9 |
Uniform circular motion |
Равномерное круговое движение |
APPENDIX C
APPENDIX D
APPENDIX E
APPENDIX F
- Normally, we consider the tire friction with a dry road being 0.8
- Most F1 cars weigh around 1,300 pounds with the driver
- Radius of curvature is 25 meters
- Gravity take as 9,8 m/s2
APPENDIX G