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Knex 78890 - Education Amusement Park Experience Teachers Guide Manual

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LESSON 10
10: I
10: I
NVESTIGATING
NVESTIGATING
THE
THE
P
P
ERIOD
ERIOD
OF
OF
A
A
P
P
ENDULUM
ENDULUM
67
Am usement Par k Ex perienc e
OVERVIEW FOR THE TEACHER
The Pirate Ship ride at the amusement park introduces a new type of motion for students to explore,
that of periodic motion. Granted, the motion of Pirate Ship is part of a circle and so is similar to the
circular rides in terms of the path that it follows; it also has similarities to the back and forth motion
of the balls in the half pipe systems. In addition to these motions, however, the Pirate Ship is also
an excellent representation of a pendulum. The activities designed for this ride allow students to
experiment with, and understand, the period of a pendulum and periodic motion. They will be able
to investigate variables that have an impact on periodic motion. These will include the mass of the
Pirate Ship, the length of its support members, and the release height of the ride.
REVIEW
Students will be more successful with these activities if they have had an opportunity to observe other
periodic motion systems (metronome, clock pendulum, etc.)
ACTIVITY 1: PREDICTIONS
PROCESS
Whole Class
1. Display images of a Pirate Ship ride and introduce the class to the idea that while this ride
demonstrates some of the motions that they have already investigated, it also introduces a new
type of motion for experimentation. Ask for volunteers to describe their experiences of this ride
and to describe its motion. Students should be helped to understand that the ride represents the
motion of a pendulum.
Teacher’s Notes
• Consider using a string and a weight to demonstrate periodic motion, as it would appear using
a pendulum.
In Groups
2. Distribute the K’NEX Education materials and ask the groups to build the Pirate Ship model
following the directions provided on either Page 18 of the Building Instructions booklet or on the
CD-ROM.
3. Once the ride is completed ask students to place books on the extension provided on the ride to
ensure it stays in place on the table/bench. Allow the students time to explore the motion of the
ride and ask them to consider the following questions. You may want to record these on the board
and have the students write their predictions in their journals.
… 69 …


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