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Mag. Ronald BinderMag. Veronika Ruedegger
INLOT – SKI - JUMPING
Lesson Plan
Guided Research Model
www.virtuelleschule.at/inlot
Mag. Ronald BinderMag. Veronika Ruedegger
General Information
Duration: 8 x 50 min
Vocabulary: velocity, acceleration, force, energy, inclined plane, aerodynamics
Tools and Materials: notebooks, InLoT: hardware and software, internet
Mag. Ronald BinderMag. Veronika Ruedegger
General Informations
Aims and Objectives:
Students should
• deepen their basic knowledge in mechanics by studying one field of sports
• be able to use java applets independently in order to gain profound knowledge about forces
• be able to use InLoT hard- and software and analyse the obtained data
• learn how to organise an experiment outside the classroom
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 1
Stimulation: 1 x 50 min
presentation of selected photos of ski jumpers, pole vaulters,…
giving some impressions of a ski jump training camp (video clips)
discussion about accelaration and forces acting on ski jumpers
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 2
Scientific Prediction: 1 x 25 min
Students should find out about the following:
what forces can be exerted on people ? do an internet research and give examples of different accelarations of people
how does the acceleration of a ski jumper change during the different phases of the jump
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 3
Experimental Activities
11 x 25 min
Run the java applets in order to understand how vectors combine to form the resultant on inclined planes
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 3
Experimental Activities
21 x 50 min
Plotting the graph of a vertical jump using the InLoT system
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 3
Experimental Activities
31 x 50 min
Plotting thegraph of a skijump from the K90 – jumpinghill
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 4
Abstraction of the findings 1:vertical jump: 2 x 50 min
Bouncing force: F = m·a ,
m … mass of the jumpera … acceleration plotted in the diagram
Impulse: Δp = F·Δt,
Δt … time to jump off the ground (plotted in the diagram)
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 4
Height of jump
t … half the time of the jumpg … acceleration of gravity
Landing velocity v:
potential energy equals kinetic energy:
EPOT = EKINmgh = mv2/2
2
2t
gh
ghv 2
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 4
Breaking distance:
a ...deceleration (plotted in the diagram)t … amount of time to decelerate (plotted in the diagram)
2t2
as
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 4
Abstraction of the findings 2:ski jump: 1 x 50 min
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 4
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 4
EPOT = EKIN
mgh = mv^2/2
r
va
r
mvF
2
Z
2
Z N297cA2
vρF A
2
A
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 5
Consolidation: 1 x 50 min
discussion of evolving questions or problems
analysis of a video which shows the vectors of acceleration at any time
Mag. Ronald BinderMag. Veronika Ruedegger
Educational Phase 5
Exercises:
Hot Potatoes – Quiz about the mechanics of ski jumping Plotting the graph of one´s own vertical jump