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# Putter King Education - Physics (Level 1)

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Here you can learn all about the physics concepts that are hidden in miniature golf. Visit www.putterking.com for more info.

Level 1 - Prince
Area of focus: The Law of Reflection
Topics covered:
> Surface normal
> Angle of incidence
> Angle of reflection
> The Law of Reflection

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### Putter King Education - Physics (Level 1)

1. 1. For the teacherʼs guide and all answers please contact info@putterking.com Future KingsTM Education Program Subject: Physics Level 1 (Prince) Putter King LLC All materials copyright © 2011 Level 28 Shinagawa Intercity Tower A Putter King LLC 2-15-1 Konan Minato-ku Tokyo, Japan All rights reserved 108-6028 Unit #: 2011020102
2. 2. Physics Level 1 - Prince 2
3. 3. Summary Area of focus: The Law of Reﬂection Topics covered: • Surface normal • Angle of incidence • Angle of reﬂection • The Law of Reﬂection Suggested time to complete (2 hrs): • Teaching material (20 minutes) • Practice activity (40 minutes) • Final project (60 minutes) 3
4. 4. Surface Normal A surface normal to a ﬂat surface is a vector that is perpendicular to that surface. normal The dotted line is perpendicular to the ﬂat surface. 4
5. 5. Angle of Incidence The angle of incidence θi of a ray is the angle measured from the ray to the surface normal. normal θi 5
6. 6. Angle of Reﬂection The angle of reﬂection θr of a ray is the angle measured from the reﬂected ray to the surface normal. normal θr 6
7. 7. The Law of Reﬂection When a ray of light reﬂects off a surface, the angle of incidence is equal to the angle of reﬂection. θi = θr normal θi θr The Law of Reﬂection describes a property of light; however, we can use the Law of Reﬂection to estimate the direction of our shots in games such as miniature golf and billiards if we assume that the there is no spin and the shot is at a low to medium strength. 7
8. 8. Practice Activity Correctly draw and label the shot path to get a hole-in-one from the “X”. Be sure to use a protractor to correctly measure and label all angles. Bonus points if you can ﬁnd 2 unique paths to the hole. 8
9. 9. Final Project Requirements Design and label a miniature golf hole that includes: • the shot path to get a hole-in-one using the Law of Reﬂection For full points, be sure to: • label all angles along the shot path • draw and label the surface normal for each angle of incidence and angle of reﬂection along the shot path • use a protractor to accurately measure all angles • be creative! 9
10. 10. Grading Rubric Bogey Par Birdie (70% - 79%) (80% - 89%) (90% - 100%) • Student shot path follows the • Student shot path follows the • Student shot path does not Law of Reﬂection; however, Law of Reﬂection and is Shot Path follow the Law of Reﬂection student has made a calculation accurately calculated from tee error box to hole • Student incorrectly labeled • Student correctly labeled all more than one angle • Student incorrectly labeled an angles Labels • Student incorrectly labeled the angle or a surface normal • Student correctly labeled the surface normals surface normals • Miniature golf hole design is • Miniature golf hole design is playable and aesthetically plain and simple • Miniature golf hole design is pleasing • Student lines and angles are playable Design sloppy or incorrectly labeled • Student lines and angles are • Student lines and angles are neatly drawn and labeled • Miniature golf hole design neatly drawn and labeled • Miniature golf hole design is does not exhibit creativity creative and original 10