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

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

Extracts from this document...

Introduction

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

Aim: In this investigation we will observe and analyse the rate of fall of cup cakes when the mass is altered.

In my preliminary work we conducted experiments where we dropped a large surface area parachute and small surface area parachute from the same height of 1 metre and 1.5 metres. The purpose of this preliminary experiment is to familiarise and understand the principles involved in the experiment.

Diagram:

Results of preliminary experiment (1):

Parachute dropped at 1 metre –

Time in seconds to fall 1 metre

Small surface area parachute

1.16

1.22

1.25

Large surface area parachute

2.00

2.03

1.84


Average:

Time in seconds to fall 1 metre

Small surface area parachute

1.21

Large surface area parachute

1.96

From these results we can see that, the larger the surface of the parachute will fall at a slower speed compared to a smaller parachute with a smaller surface area, which will fall at a faster speed. A larger surface area increases the air resistance, and slows the fall.

...read more.

Middle

1.23

Average time taken to fall in seconds

5.16

5.91

From these particular results we can tell that the more paper clips added the heavier the falling object is and the faster it will reach the ground.

 Because the weight and gravity are not balanced then paper cup accelerated in that direction. 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 paper cup and record the time it takes to finish the 2 metre drop.

 2 metres is chosen as the height as it allows time to release the paper cup and start and stop the clock sufficiently. As opposed to a shorter distance e.g. 1 metre where it allows errors to be made since it reaches the ground so fast, the person timing, their reflexes may not be fast enough to react accurately. 2 metres is also a practical height as it can be reached if we use a chair to aid us. If we increased the height to 3 metres the paper cup is more likely to be affected by disturbances towards the experiment e.g. Drafts.

 The paper cup will be dropped 3 times at each selected mass to insure accurate results and hopefully rule out any erroneous results.

I’ve chosen to drop the paper cup in an upright position (\__/) because it is more streamline and so the particles in the air can travel at an equal velocity and low frictional drag.

 If the paper cup is dropped upside down (/   \) there will be an increased turbulent force as the streamline are more irregular and high frictional drag, these factors are more likely to affect the results.

Table of selected Range:

RANGE

1 cup

2 cups

3 cups

4 cups

5 cups

...read more.

Conclusion

× the pull of gravity on each kg.

Weight = mg

And the size of ‘g’ can show the gravitational acceleration – g = w/m.

 So, the paper cup which has the biggest, as will accelerate faster.

Both balls have a spread of 40 m/s. At this speed the weight of the red ball is balanced be air resistance but the heavier green ball is still accelerating.

 Surface area also affects the speed of fall; an object with a large surface area will be slowed down and shown in preliminary experiment with the parachutes.

 However in this particular experiment the surface are will stay the same, perhaps a minute increase of surface area where the added paper cups are places around the rim, but this would only make a minor difference.

 So, from these formulas I predict that as the mass increases, the time taken to fall a 2 metre distance will be less compared to the smaller mass paper cups. There will be a higher terminal velocity reached by the larger mass paper cups which will result in a quicker fall

I’ve illustrated my results in a graph; I predict the graph to be inversely proportional.

Reshma Gumani 11n

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

    The weight affects an experiment by increasing the time it takes for an object to hit the ground. Height The height was the control variable and it stayed the same otherwise the time taken would not be reliable as when the height increases so does the time taken for the

  2. Squash Ball and Temperature Investigation

    To make the test fair, we kept the temperature of the water at a constant of 300C for each time we held the ball under water (so that each time the ball was supplied with the same amount of heat energy)

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

    First of all, the metre ruler should be used to measure the height of the room being used. The room should be at least 2.86m high, which is the height from which the parachutes were dropped in this experiment. The height should be marked, and this will be the height from which the parachutes will be dropped.

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

    Find a suitable space with plenty of height to drop the parachute from (a stair well would be adequate) measure the height and ensure that it is reasonable enough for the parachute and object to be able to reach its terminal velocity.Drop the parachute from the same place each time to make sure the investigation is fair.

  1. How Fast Does a Paper Cone Fall?

    added together and divided by 3, giving an average, this will be done to provide a more accurate and realistic result. Once all averages have been successfully made the experiment will be complete. Identifying key factors to vary, control and take into account, There are many different factors which can

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

    the velocity and the air resistance have to increase to balance it. So unless the weight of the paper case changes there is always the same force of gravity acting on it. So I expect that there will be a straight line of best fit on the graph.

  1. Approximate Stopping Distances

    To calculate the momentum of an object the following formulae is used: Momentum = Mass x Velocity = 20 kg x 20 m/s = 400 kg m/s In order to stop an object you will need to remove its momentum.

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

    Repeat from step 4 twice more so you end up with three results for the same height then continue onto step 9 9. Add all these results together and divide the answer by three to obtain the average. 10. Record this average in the table 11.

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