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

Speed of a Falling Object

Extracts from this document...

Introduction

Speed of a Falling Object Aim The aim of this investigation is to find the factors affecting the rate of fall of a body through the air. Fair Test The variables that will need to be the same to make this a fair test are: * The shape paper cases that are used :- The shape of the paper case affects the air resistance acting upon it. * The weight of the paper cases that are used :- The weight affects the speed of fall and would therefore end up in incorrect results. Theory Gravity is the force which pulls objects together. It depends on the mass of both objects, an object with a large mass will have a large gravitational force compared to an object with a smaller mass which will have a smaller gravitational force. This can be shown using the moon and the Earth as the Earth has a larger mass it has larger gravitational field strength. Gravitational forces between objects decrease if they have less mass or are further apart. ...read more.

Middle

Weights of paper cases: * 1 = 0.31g * 1 1/4 = 0.34g * 1 1/2 = 0.44g * 1 3/4 = 0.50g * 2 = 0.56g Results 0.5m Weight of Paper Case 1st Time Taken (s) 2nd Time Taken (s) 3rd Time Taken (s) 4th Time Taken (s) Average Time Taken (s) 1 0.36 0.44 0.37 0.37 0.39 1 1/4 0.37 0.43 0.31 0.33 0.36 1 1/2 0.33 0.33 0.27 0.29 0.30 1 3/4 0.27 0.29 0.29 0.28 0.28 2 0.24 0.27 0.29 0.27 0.24 1.0m Weight of Paper Case 1st Time Taken (s) 2nd Time Taken (s) 3rd Time Taken (s) 4th Time Taken (s) Average Time Taken (s) 1 0.57 0.71 0.65 0.72 0.62 1 1/4 0.64 0.66 0.65 0.58 0.63 1 1/2 0.54 0.57 0.52 0.66 0.57 1 3/4 0.54 0.47 0.53 0.53 0.51 2 0.48 0.49 0.51 0.50 0.50 1.5m Weight of Paper Case 1st Time Taken (s) 2nd Time Taken (s) 3rd Time Taken (s) 4th Time Taken (s) Average Time Taken (s) ...read more.

Conclusion

Human error can be eradicated by setting up a computer system to measure the time. Writing a timing program for the computer and setting up motion sensors can achieve this and therefore get more accurate results. As mentioned above the results are very accurate with the apparatus available. This is shown by the graphs the lines fit the trend of Distance/time graphs and they are all similar shapes. Also the four results for every test are similar and by doing this they back each other up. Improvements for the future include the point mentioned above about using a computer to time rather than a person, to increase the accuracy. Another improvement could be to get a larger measuring device as I used three 1m rules held up by a clamp and this is not as accurate as one straight measuring device (e.g. rule) that is 2.5m long. Ways to extend the experiment are to ask the questions, "What would happen if other objects are used?" "What would happen if the air pressure was changed?" and "What would happen if there was a different gravitational force?" ?? ?? ?? ?? Speed of a Falling Object - 1 - Philip Dovey ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Mechanics & Radioactivity 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 AS and A Level Mechanics & Radioactivity essays

  1. Peer reviewed

    Catapult Investigation

    3 star(s)

    There were several of our results that were extraordinary these are highlighted in the results table and also on the graph. Again the main reasons for these were: 1. Everyone in our group had a go at firing the weight.

  2. Factors affecting the speed of a trolley Travelling down a ramp.

    Acceleration is a vector quantity, which is defined as "the rate at which an object changes its velocity." An object is accelerating if its velocity is changing. When the trolley is on top of a ramp with there is the biggest gradient, the trolley will accelerate more, compared to a ramp where the gradient is smaller.

  1. Investigating the factors affecting tensile strength of human hair.

    Everything must be secure. The length of the loop of hair formed should be similar as with all hairs being tested. The weight should not be added until the rest of the equipment has been set up accurately. 5. Once the hair is set up in with the equipment, I

  2. Objectives: To determine the center of gravity of a body of irregular shapes

    The experimental errors can be divided into two errors, systematic errors and random errors. The smoothness of the surfaces of the board, paper and the edges of the meter rule are belonged to the systematic errors. The motion of the boards, the size of the holes and the time that the board is at rest are the random errors.

  1. Measure the earth's gravitational field strength.

    A clamp stand- this was used to hold the light gate up above the runway so it could allow the picket fence to pass through it. The apparatus were set up as shown in Diagram one. The runway would first be put at a very small slope to start off the experiment.

  2. Investigating how height affects time taken for a falling object to reach ground level.

    The height from which the ball is dropped is the independent variable, i.e. the variable that is changed and the dependent variable is the time taken for the ball to reach the ground. It is predicted that as the height from which the ball is dropped decreases, the time taken for the ball to reach the ground will also decrease.

  1. Use of technology in a hospital radiology department. The department of imaging is one ...

    explain the procedure for the examination, and show them a private cubical where they may remove the dress, then they will be asked to put on the surgical gown provided. However if they want they may bring their own gown, and then they will be taken into the X-ray room

  2. Physics Investigation: Speed

    * Have the same person timing(reactions) * Apply the same force, push the car with the same power (ie. Use the same person, same force at 'A') * Use same ramp(same distance and same surface of ramp) Prediction I predict that the higher the ramp, the faster the toy car will go.

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