1. Topic-
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2. Content-
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Centripetal Force
Angular Momentum Conservation
Precession |
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3. Goals: Aims/Outcomes-
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Cal. Science Standards for Physics:
1.f. Students know that applying a force to an object perpendicular
to the direction of its motion causes the object to change direction
but not speed (for example, the Earth's gravitational force causes
a satellite in a circular orbit to change direction but not speed).
1. g. Students know that circular motion requires application of a
constant force directed toward the center of the circle.
1.l.* Students know how to solve problems in circular motion, using
the formula for centripetal acceleration in the following form: a=v2/r. |
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4. Objectives-
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1.Students will use equations and calculators to determine the tension
in a swinging pendulum
2. Students will listen to and discuss Angular momentum concepts presented
to them
3. Students will apply conservation of angular momentum to examples
of rotating objects. |
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5. Materials and Aids-
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Laptop with YouTube access
Projector
Calculators |
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6. Procedures/Methods-
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A. Introduction-
Students watch YouTube video of Steve Trotter pendulum swing stunt.
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B. Development-
1. Students copy the picture down in their notes and record given
parameters.
2. Teacher presents definitions of Angular momentum and conservation
law.
3. Teacher demonstrates examples of angular momentum and precession |
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C. Practice-
1.Students Calculate tension support required by the cable.
2.Student discuss why the stunt failed.
3.Students predict what will happen with each angular momentum demonstration. |
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D. Independent Practice-
Students will complete a problem from their homework at end of class.
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E. Accommodations (Differentiated Instruction)-
Material is presented on the overhead and is posted online for their
review outside of class.
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F. Checking for understanding-
Students will share out answers to angular momentum demonstrations.
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G. Closure-
| Students complete problems from textbook. |
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7. Evaluation-
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Students will be able to complete problem set from textbook.
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