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

How does an increased surface area change the time taken for a mass to fall?

Extracts from this document...

Introduction

How does an increased surface area change the time taken for a mass to fall?

Aim

The aim of this investigation is to find out how the change in surface area changes the time for a mass to fall at certain heights.

To do this, I am going to use a large cup cake as a mass with a large surface area and a small cup to be the mass with a small surface area. They are going to both be the same mass to make this a fair test. The cup cakes are dropped at given heights and the time period will be the tine taken for it to reach the ground from when it starts to fall. With this, we can look at the times to see what affects the change in surface area has with a given mass.

 In my preliminary experiment, I am going to determine what mass is going to used, the minimum and maximum heights at which the cup cakes are going to be dropped for both and create a graph of the range of results to approximately know what range of results I should come up with when I am actually doing the experiment.

...read more.

Middle

Terminal velocity is achieved by Newton’s 1st law: Balanced forces do not affect the movement of an object: it remains stationary. But in this case Newton also says if the object is already moving it continues to move at the same speed and in the same direction.

Apparatus

  • Two 100.00cm rulers
  • 2.00g of plasticene
  • A large cup cake
  • A small cup cake
  • A stop watch
  • A Balance (to measure mass of cup cakes for fair test to 2 d.p.)
  • Sellotape
  • Right angled set square

Method

  • Get all apparatus as listed above
  • Using a right angled triangle to make sure the ruler is 900 to the ground, place one 100cm ruler up against the wall and attach it to the wall firmly using sellotape.
  • Using the right angled triangle again, firmly attach the other 100cm ruler on top of the other 100cm to the wall using sellotape. The right angled triangle is used to keep the rulers at right angles to the ground so no anomalous results appear due to the rulers not being straight.
  • Place the large cup cake on the balance. It will be lighter then 0.33g. To make it to 0.33g which I am going to use for both cup cakes, add a little bit of plasticene at a time until it reaches 0.33g
  • Do the same as above but with the smaller cup cake to make it a fair test with both cup cakes being the same mass at 0.33g.
  • Remember to find the mass of the cup cakes each time before it is dropped to make sure it is a fair test.
  • Starting from 50.00cm, drop each cup cake 3 times so an average time can be recorded. Use the stopwatch to time how long it takes the cup cake to reach the ground. When dropping the cup cake, make sure it is dropped at exactly 50.0cm each turn by using the right angled set square level to the height. Measure from the bottom of the cup cake. Start the timer when it starts dropping immediately and stop the timer as soon as the bottom of the cup cake reaches the bottom. Each cup cake must be dropped in the same way, with its bottom facing the floor. Make sure the cup cakes are dropped straight and that no winds are affecting the results or any obstacles i.e. the wall and windows open. Record all observations.
  • Repeat the above up to 240.00cm going up 10.00cm each time and recording all observations. Put all results into a results table.
  • Make sure it is a fair test.
...read more.

Conclusion

Some repeated values were a little bit off than the others but were not that dramatic. This is probably due to the reaction time of starting and stopping the stopwatch as stated above and could be improved. The range of readings may have also been improved by making more readings at the start when the cup cake is first released. This could give more detail and information how much more the smaller cup cake accelerates than the larger cup cake. There is no point in making range of readings more than 240.0.cm because from using scientific evidence, we know that terminal velocity will carry on until it reaches a halt on the ground. To improve data, more readings may have been taken. Instead of taking readings every 10.00cm, we could have taken readings every 5.00cm to produce more data so we could reinforce our conclusion.

...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. Investigation into how mass affects the rate of fall of cup cakes.

    The rate of fall increased as the weight increased. Experiment: Investigation into how mass affects the rate of falling cup cakes APPARATUS * Paper cups * 2. Metre sticks * Clamp * Stopwatch Diagram of materials in use METHOD Once the apparatus is set up correctly, at the height of 2 metres from the floor we will drop the

  2. 'To investigate whether the amount of paper cup cake holders affects the time taken ...

    At the instant of release there is no friction because the object is not moving. The weight of the object makes it accelerate downwards, because gravity is acting on it, the heavier the object the faster it will accelerate, because gravity is a constant force, it always stays the same;

  1. My investigation is about how the number of paperclips added onto a paper spinner ...

    The result of three trials of each weight (paperclip) was recorded and the weight was then increased (by adding a paperclip). Using the stopwatch as a means of measuring the time taken for the spinner to fall was not very reliable but, all the factors that could be changed were.

  2. Determine whether the height from which I drop a paper cake case affects how ...

    press the start button on the timer at same time I release the case and may not stop the timer at the exact time the case reaches the floor. Precautions that I will take to ensure that the experiment will be fair, although I can not protect the experiment from human error.

  1. In this experiment I aim to find out how the force and mass affect ...

    Based on my existing scientific knowledge, I know that this experiment depends on a certain type of energy being converted into another type. When the trolley is raised to the top of the ramp, it gains a certain amount of potential energy - this is converted into kinetic (movement)

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

    1.58m/s 650mm by 650mm 4500 mils 3.38 1.33m/s Anaylisis My results clearly show how the suface area of the canopy of the parachute affects the speed at which the object falls. I can see that as the surface area increases the speed at which the parachute falls decreases and the time it takes to fall increases.

  1. Find the terminal velocity of a cake cup.

    When doing this experiment it is important to make sure that cake cup has reached it's terminal velocity. In order to find this out I took some preliminary results. I did this by taking 6 cake cups ( the maximum amount of cups I will use in the experiment), and

  2. Approximate Stopping Distances

    When the roads are wet, the friction between the car's tyres and the surface of the road is reduced. This can increase stopping distances and will do so dramatically if the weather conditions are bad and the depth of the vehicles tyres is shallow.

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