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The main aim of this experiment is to investigate one factor, which will affect the length of the jump, and to find out the relationship between this factor and the length of the jump.

Extracts from this document...

Introduction

AS – Physics

Practical Assignment

“The Ski Jump”

Planning

The main aim of this experiment is to investigate one factor, which will affect the length of the jump, and to find out the relationship between this factor and the length of the jump.

I intend to vary the size of H2, and measure the changes in L2 that occur from my variations. I have decided that it would be better to change the size of H2 instead of H1 because if I change the values of H1 then the shape of the slope would be changing
with each jump which in turn would affect the friction and acceleration of the marble. Whereas changing the value of H2 does not change the shape of the slope and the results will only have two components so it will be possible to find a relationship between the two sets of results.

I intend to vary the length of H2 from 200mm up to 500mm and I intend to take 7 measurements, I will take these measurements at the following values of H2;
200mm, 250mm, 300mm, 350mm, 400mm, 450mm, 500mm.

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Middle

200mm = 0.2m

0.20s

250mm = 0.25m

0.22s

300mm = 0.3m

0.24s

350mm = 0.35m

0.26s

400mm = 0.4m

0.28s

450mm = 0.45m

0.30s

500mm = 0.5m

0.32s

The horizontal distance can be found by the following formula assuming that the velocity at takeoff is known;

uT = L2

So if I can fix the velocity at takeoff to be 5ms−1 then I can predict the distance that the marble will travel for each of my values of H2, below is a table showing my predictions.

H2

V

T

L2

0.20m

5ms-1

0.20s

1.0m

0.25m

5ms-1

0.22s

1.1m

0.30m

5ms-1

0.24s

1.2m

0.35m

5ms-1

0.26s

1.3m

0.40m

5ms-1

0.28s

1.4m

0.45m

5ms-1

0.30s

1.5m

0.50m

5ms-1

0.32s

1.6m

I

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Conclusion


Table to find out the value of H1 that produces a velocity of 5ms-1

Looking for the value of H1 that produces a L2 of 1m, the value of H2 in this experiment remains constant at 0.2m

H1

L2

Comments

Table to record the change in L2 from changes in H2

This table is to record the value of L2 when I change the value of H2 as I said earlier.

H2

L2 (1st)

L2 (2nd)

L2 (3rd)

0.20m

0.25m

0.30m

0.35m

0.40m

0.45m

0.50m

Comments

Martin Gatenby        Page         27/04/2007

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