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

Paper parachute investigation - Investigating the relationships between the sizes of the cones, the time taken to fall to the ground and ultimately the speed at which each cone falls.

Extracts from this document...

Introduction

Paper Parachute – 26/04/2007

Paper Parachute

Method

I will make several differently sized paper cones and time how long each cone takes to fall to the ground from the same height (2.72m). I can then investigate the relationships between the sizes of the cones, the time taken to fall to the ground and ultimately the speed at which each cone falls.

For this experiment, I will need:

  • Different sized circles,
  • Scissors,
  • Protractor,
  • Stopwatch,
  • Ruler,
  • Sellotape.

Before I start I must consider the most important factors in this experiment. The size of the cones; the change in size will create a change in air resistance and therefore affect the velocity. The amount of Sellotape we use will affect the weight of the cone and affect the results; therefore we must use proportionally the same amount of Sellotape for each parachute. The angle at which the cone is created will remain the same (60 degrees) throughout the experiment, as the angle will determine whether the cone is wide or narrow.

I will repeat the experiment 3 times and take an average to produce more accurate results. I will record the time the

...read more.

Middle

1.44

1.51

2

1.63

1.66

1.85

1.64

3

1.75

1.81

1.84

1.68

4

1.6

1.78

1.68

1.69

6

1.72

1.97

1.84

1.84

8

1.9

1.65

1.85

1.8

10

2.09

2.03

1.9

2.01

Conclusion

I have found that, in general, the larger the parachute, the more time it took to reach the ground. This means that it’s velocity was lower so I used the equation: Velocity =                 to work out the average velocity at which the

parachutes were travelling. Also, using my graph, I could work out the percentage difference from one cone to the next.

Cone size (cm)

Velocity (m/s)

1

1.8

2

1.65

3

1.62

4

1.61

6

1.48

8

1.51

10

1.35

image00.png


We can tell from both the chart and the graph that there were anomalies in this experiment.

...read more.

Conclusion

Terminal velocity is the speed at which the force accelerating an object through a particular medium is balanced by the drag slowing it down. This terminal velocity depends on the nature of the medium, and the shape and size of the falling object.

Less compact shapes will fall slowly because air resistance slows them down. With more compact shapes, the drag force is much less in relation to its weight, so it is slowed down much less. A falling object will eventually reach a speed where the drag force exactly equals the objects weight. At this point, the object stops accelerating, and it is said to have reacted its terminal velocity.

The force of gravity acts between any two masses, making them attract to one another. Everything on Earth is pulled down to the Earth’s surface by gravity; and this force gives objects their weight. Like other forces, gravity is measured in Newtons. The gravitational force exerted by the Earth is about 9.81 Newtons on every kilogram of matter on its surface.

...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. Factors affecting the terminal velocity of a falling cone

    Therefore as the number of holes increased, the cone accelerated for longer before reaching terminal velocity. For example, a cone without one hole would accelerate for a shorter period of time before reaching terminal velocity than a cone with 7 holes.

  2. This investigation is associated with the bounce of a squash ball. I will be ...

    Drop Height One of the aspects I needed to investigate in my pre-testing was the height that I dropped the ball from, as this will need to be kept constant to keep the investigation fair. Below is a table of results to show how high the ball bounced when dropped from different heights the temperature was 26oC.

  1. Investigating the factors affecting the speed at which a parachute falls.

    We will measure the speed at which the parachute reaches the ground by timing the parachute and measuring the distance, in cm, at which it is dropped from (see Diagram 1). We will then calculate the speed at which the parachute fell.

  2. Trolley Speed

    Without fair testing the experiment would be useless because the information gathered from the experiment would not be accurate/reliable. Here are some factors that I have drawn up to make my investigation as fair and as accurate as possible. 1.

  1. Investigate to see if adding mass to a cupcake case will increase the speed ...

    are not very accurate I cannot use them for the final test. I will try several different methods to see if I can find some result that would be suitable for the experiment. Test 3: We will increase the mass by adding 2 cupcake cases every time.

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

    The weight can then be tied on to the strings that are attached to the parachute. The parachute can now be taken to the 2.86m height and dropped. The parachute should be timed as it falls, and the horizontal distance from the point it was dropped should also be measured.

  1. Investigating the relationship between the speed of a model car and its stopping distance.

    * Average Velocity2 - this is the average velocity squared. (Note: I used the formula function in Microsoft Excel to do all my calculations.) Analysing my Results My results show simply that as the number of blocks increase so does the speed to a certain point but then all of

  2. Investigation on how the Surface area of a Canopy Affects the Rate at Which ...

    Hypothesis Terminal velocity is when an object has equal forces acting on it as it falls. When the parachute falls the two forces acting on it are air resistance (pushing upwards) and the weight of the object (pushing downwards). An object can only reach its terminal velocity when the forces of air resistance and weight are balanced.

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