• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  • Level: GCSE
  • Subject: Maths
  • Word count: 1930

Parachute Investigation.

Extracts from this document...

Introduction

James Black  28/3/03  10Y1

 Parachute Investigation Year 10.

Planning

We have decided to investigate the factor of weight and height.

Preliminary Experiment

The results of our preliminary experiment are shown below. The trial ran smoothly with little to no mistakes.

1 Coin

3 Coins

5 Coins

1 m

1.09s

0.78s

0.67s

0.93s

0.79s

0.49s

0.87s

0.64s

0.49s

AVERAGE

0.96s

0.74s

0.35s

2 m

1.90s

1.15s

1.12s

2.04s

1.27s

1.09s

1.71s

1.31s

1.22s

AVERAGE

1.88s

1.24s

1.14s

Detailed Plan

Parachute Investigation – Investigating how different factors affect the speed of a parachute.

There are multiple factors which affect the speed of a parachute e.g. (a) the surface area of the parachute, (b) the length of each string (between the parachute and mass), which might control the volume of air under the parachute, (c) the mass contained within the basket, (d) the distribution of mass, i.e. perhaps on the parachute itself as opposed to on strings attached to the parachute (this of course would not be a continuous variable so it would not be of great value) and of course, (e) the height from which the parachute is dropped.

        I predict that a heavier amount of mass in the basket will cause the parachute to fall faster and the higher the parachute is dropped from, the longer the time until impact.

...read more.

Middle

image00.png

                                                          Time taken

To make our results as accurate as possible we will repeat any ‘duff’ experiments. This will include any obstruction to the parachute on its descent, whether or not the parachute was released and the timer started at exactly the same time and stopped at the time when the parachute touched the ground and also if any malfunctions with the parachute or basket occurred during the descent.

        To ensure that our results are reliable we will repeat each single test three time and find the average with the following equation.

                        Result 1 + result 2 + result 3 =    x_

                                                                                3

‘Preliminary work has been noted above’

To certify safety, precautions must be taken while standing on high objects such as tables or chairs and also you must make sure before releasing the parachute that it is not going to collide with anything else.

Obtaining Results

1 coin

2 coins

3 coins

4 coins

5 coins

1 metre

0.99s

0.78s

0.75s

0.64s

0.53s

0.90s

0.82s

0.69s

0.68s

0.52s

1.02s

0.83s

0.66s

0.54s

0.52s

AVERAGE

0.97s

0.81s

0.7s

0.62s

0.52s

1.25 metres

1.29s

1.03s

0.94s

0.87s

0.58s

1.21s

1.13s

0.99s

0.81s

0.64s

1.50s

1.09s

0.89s

0.

...read more.

Conclusion

        I would say the reliability of our results was good and that to make the results more reliable the parachute would have to be constructed in a more methodical manner. To minimise direction changes the weight distribution would have to be perfect throughout and the attachments symmetrical all the way around.

        The suitability of the procedure for the investigation was quite good although it could be improved by formulating some way of enabling the parachute to be dropped and the timer started at the same time to ensure fairness. This is the same for when the parachute touches the ground.

        Providing additional relevant evidence to back up my conclusion could be done in a number of ways :-

  • Further variables could be tested in order to find out more about the physics of the parachute e.g. (a) the surface area of the parachute, (b) the length of each string (between the parachute and mass), which might control the volume of air under the parachute, (c) the distribution of mass, i.e. perhaps on the parachute itself as opposed to on strings attached to the parachute.
  • More tests could have been done to widen the range of evidence or to provide more evidence of what has already been done.

...read more.

This student written piece of work is one of many that can be found in our GCSE Pay Phone Problem section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Pay Phone Problem essays

  1. Were coins used in the Roman Empire more for propaganda purposes or as a ...

    It was the palace that Nero erected after the notorious great fire, and he came under great suspicion amongst the people of Rome, as many thought that he had burnt down part of the city in order to make room for the palace to be built.

  2. PAYPHONE. The woman is going to make a phone call costing any multiple of ...

    50p 8 1+1+6 Black-First block Green-second block Blue-third block Observation It stays the same until it reaches 50 then it increases by 2, 3, and 4... The same also happens with the blue block it stays the same but when it reaches 50 it increases by 2, 3, 4...

  1. The Framework Knitting Museum: An Accurate Reflection of History or Not?

    and the Framework Knitter only 3, they both had 3 floors, and both cottages had rather compact space. The floors on the ground floor were the same, both having the same black bricks, although they'd try to cover these with the recycled rugs.

  2. Mystery investigation

    Apart from the creased trousers, I think I look "damn good!" I wish for a strong cup of coffee but lack of time prevents such luxury. I look around a room to find my keys, my cigarettes. Everything seems to be misplaced.

  1. Arrian, The Anabasis of Alexander, together with the Indica, E

    In addition to all this, Alexander was commanding in the field against Darius. These things he enumerated as evidences of their superiority in the struggle; and then he began to point out the great rewards they would win from the danger to be incurred.

  2. The woman is going to make a phone call costing any multiple of 10p. ...

    The number of different ways you could put the two coins into the pay phone is shown in the table on the next page. The phone call will cost any multiple of 10p. Multiple of 10p Combinations for 10p,40p Total no of combinations Algebra/Terms 10p 10 1 T1 20p 10,10

  1. The Undetermined Amount.

    He feels he has no control over them. Johnson is overjoyed to hear the machines die down because this means quitting time, and begins to head for the pay lines. Houser 3 Johnson leaves the plant and heads for home. Although he is not looking forward to the ride home, it takes quite some time to get there by the subway.

  2. The Test

    Vernon needed a stronger and more precise test than the benzidine one. I told him there was, and proceeded to demonstrate after he had rushed around and found me some duplicate knives to the one that Benjy had supposedly used to stab Kenny Tarcher.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work