• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

The purpose of this investigation is to collect details about how the weight of an object can affect the speed that a parachute drops.

Extracts from this document...


Alex Fox 10-3                26th June 2002

Physics: Parachutes Investigation

Planning: The purpose of this investigation is to collect details about how the weight of an object can affect the speed that a parachute drops. The main aims of the investigation are to find out the way that different forces act on objects when dropped. The forces that act upon the parachute are, gravity and air resistance. Gravity pulls the weight on the parachute down, and air resistance acts against the parachute. A diagram is shown below of how the different forces act on the objects. In this case the parachute and the weight:

The equipment I will be using to construct the parachute is as follows: 30cm x 30cm polythene sheet for the actual parachute, scissors for cutting string and polythene, string for tying weight to parachute and plasticine for the weight. First a 30cm x 30cm sheet of polythene was cut from a polythene sheet. Next, lengths of 30cm string were tied to each corner of the polythene sheet by making small holes in each corner and threading the string through and then tying it. The loose ends hanging down from

...read more.


Analysing and Considering Evidence:

Weight (grams)

Reading 1

Reading 2

Reading 3



1.26 secs

1.36 secs

1.67 secs

1.43 secs


1.08 secs

0.96 secs

0.90 secs

0.98 secs


0.76 secs

0.85 secs

0.77 secs

0.79 secs


1.36 secs

0.78 secs

0.70 secs

0.95 secs


0.81 secs

0.68 secs

0.65 secs

0.71 secs


0.60 secs

0.65 secs

0.61 secs

0.62 secs


0.60 secs

0.65 secs

0.71 secs

0.65 secs


0.65 secs

0.75 secs

0.62 secs

0.67 secs


The above graph shows all the results.

...read more.


        Further work could be carried out to obtain more reliable evidence. This may include not only researching one variable, but also systematically researching many variables and taking averages of these to obtain much more data. The variable factors that could be changed may include, height from which the parachute is dropped, preferably a lot higher than in these tests, so the chute has time enough to fully open. Another factor that can be varied may be the area of the parachute. In these tests we used a 30cm x 30cm parachute. I don’t feel that this was enough, as sometimes the parachute dropped and the chute didn’t open.

        So in conclusion I would say that the evidence collected from the procedure that was carried out was relevant in the sense of preliminary data. The data that I collected wasn’t enough to draw a firm conclusion from, but the data could be used could be used in further tests. Very basic preliminary tests were carried out before this procedure, but the data from the main experiment could be furthered by using it in further work. It could be used to change variable factors like I mentioned in the previous paragraph. So in the end this procedure would only be 100% reliable as very comprehensive preliminary work.

Physics                Coursework

...read more.

This student written piece of work is one of many that can be found in our GCSE Forces and Motion 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 Forces and Motion essays

  1. Peer reviewed

    Factors Influencing Resistance of a Wire

    3 star(s)

    1.9 6.333 80 0.3 2.7 2.4 2.55 8.5 100 0.3 3.0 3.1 3.05 10.166 120 0.3 3.4 3.5 3.45 11.5 I calculated the average voltage by using the following calculation: Average Voltage/V= Voltage1+Voltage2 2 e.g. Average Voltage/V= 0.6+0.6 = 0.6V 2 I calculated the resistance by using the following formula: Resistance/?= Average Voltage Current (A)

  2. How does the weight of an object affect the friction it has on the ...

    concerning the force meter. The only difference is that the block will be turned onto its side and therefore the surface area of the block of wood in contact with the surface area is changed to a smaller surface area. Apparatus: - A rectangular block of wood (325g)

  1. Trolley Speed

    Therefore I will ensure that hands will not be wet whilst touching electrical components. Also the trolley going down the ramp will need to be stopped otherwise it will fall on the floor and possibly cause injury or damage to the apparatus.

  2. The Area of a Parachute Compared To Its Rate of Descent

    Frequency Width Height 2.86 2 2 1.43 2.87 1 1 2.87 2.88 5 5 0.58 2.93 1 1 2.93 2.97 2 2 1.48 3.04 1 1 3.04 3.06 2 2 1.53 3.09 1 1 3.09 3.24 1 1 3.24 3.28 1 1 3.28 3.32 1 1 3.32 Anomalous Results In this experiment, I have found 1 set of anomalous results.

  1. Squash Ball and Temperature Investigation

    some results were plotted a bit further away from the line of best fit; however, these are not anomalies but are merely less accurate results as they are not situated ridiculously far away from the line of best fit such as the points at the temperatures 250C and 300C, which

  2. For this experiment, I and my partner decided to find out how different mass ...

    We then went to the second floor and one of us went down to the first floor to time 7) The person on the 2nd floor then dropped the parachute in the count of three and the timer will start timing it.

  1. Investigate a single factor that will affect the speed of an object at the ...

    2 x Gravity (N) x Height (m) = Velocity´┐Ż(m/s) Velocity (m/s) 2 X 10 X 0.1 = 2 1.41 2 X 10 X 0.2 = 4 2.00 2 X 10 X 0.3 = 6 2.45 2 X 10 X 0.4 = 8 2.83 2 X 10 X 0.5 = 10

  2. Strength of a string practical investigation

    MASS (G) EXTENSION Single strand Double strand 0 30.0 30.0 200 30.1 30.0 400 30.2 30.1 600 30.2 30.1 800 30.3 30.1 1000 30.3 30.1 1200 30.3 30.2 1400 30.3 30.2 1600 30.3 30.2 1800 30.3 30.2 2000 BREAK 30.2 (discontinued)

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