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Physics Projectile Lab

Extracts from this document...

Introduction

Alexander Zouev

Physics IB, 3/09/06

Projectiles Lab

Data Collection

Distance rubber band pulled back each time: 20 cm

Note: all range distances achieved are given as where the rubber band made impact with the floor, NOT where it eventually came to a standstill.

Raw Data Tables + Collection

Band Projected at 5º (±1º)

Trial

Distance achieved ±1 cm

Average distance achieved

1

165

138cm (3.s.f)

2

120

3

130

Band Projected at 15º (±1º)

Trial

Distance achieved ±1 cm

Average distance achieved

1

200

250cm (3.s.f)

2

250

3

300

Band Projected at 25º (±1º)

Trial

Distance achieved ±1 cm

Average distance achieved

1

250

275cm (3.s.f)

2

275

3

300

...read more.

Middle

2

320

3

400

Band Projected at 40º (±1º)

Trial

Distance achieved ±1 cm

Average distance achieved

1

380

383cm (3.s.f)

2

350

3

420

Band Projected at 42º (±1º)

Trial

Distance achieved ±1 cm

Average distance achieved

1

400

393cm (3.s.f)

2

400

3

380

Band Projected at 45º (±1º)

Trial

Distance achieved ±1 cm

Average distance achieved

1

380

386cm (3.s.f)

2

380

3

400

...read more.

Conclusion

Improving the investigation

        Were we to repeat an experiment of a similar nature over again, there are several changes I would implement to limit the weaknesses.  Firstly, by using a marble or some sort of more dense and inelastic material you minimize interference from the wind greatly.  Although it is true that you cannot project a marble simply with an incline plane like we did with the rubber band, but some sort of projection gun device could be obtained.  Another realistic suggestion would be to use a protractor instead of trusting the markers on the incline plane.  I believe this would slightly increase the accuracy since the protractors are pretty clear.

...read more.

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