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

Physics coursework

Extracts from this document...

Introduction

Physics coursework

Centre 40209

Candidate 3014

Anthony Brocklesby

Aim

  • To investigate the factors that affects the average speed of a falling cake case.

Equipment

I will need:

  • 50 cake cases
  • 1 Stop clock
  • Flat surface
  • Tape measure

Prediction

  • I predict 50 cake cases will fall with a greater speed than the others. This is because more cake cases have a greater mass and will therefore hit the floor with a quicker time, and a greater speed. My research suggests that because the mass is greater with more cake cases, they will reach a constant speed slower therefore accelerating for longer.
  • To calculate the average speed I used the equation
  • Speed = Distance

     Time

  • The distance I am dropping the cases from is 1.8 metres

Preliminary plan

        I will get 50 cake cases

  • Measure the height of where I want to drop cake cases off.
  • Use a timer and time the time it takes for the cake case to fall to the floor of the determined height.
  • Then record my results in a table then determine the average time by adding my first and my second times then dividing them by two
  • Then to find the average speed I used the equation speed =distance over time
  • So I divided my distance by my average time to get the average speed.

Safety

To keep the experiment safe I will make sure that the cupboards are secure and wont fall over. I will also keep the experiment area clear of other people.

I will measure

  • The distance from the top of the cupboard to the floor (1.8m) with a tape measure
  • The time for the cake cases to hit the floor, in seconds, with a stop-clock
  • My measurements are going to be to 1 decimal place because tape measures and stop-clocks do not measure any more accurately

image00.png

I will repeat the experiment

  • Twice so I can determine the average time and to keep it a fair test.

Fair test

  • I will make it a fair test by conducting the experiment twice and dropping the cake cases from the same height. And using the same equipment, I will not change the cake cases or the stop clock because changing these could cause my readings to change.
...read more.

Middle

0.81

1.70

1.60

1.08

4

1.8

0.90

1.13

1.02

1.76

5

1.8

0.87

0.86

0.87

2.06

6

1.8

0.86

0.85

0.86

2.09

7

1.8

0.70

0.76

0.73

2.46

8

1.8

0.71

0.69

0.70

2.57

9

1.8

0.55

0.64

0.60

3

10

1.8

0.47

0.62

0.50

3.6

Improvement

I improved my preliminary plan by deciding to make my results more accurate. I can do this by making another table and trying the experiment with 5- 50 cake cases, because I feel that my preliminary isn’t accurate enough. I will also take more readings of the time it takes for the cases to hit the floor.

...read more.

Conclusion

My research suggests that if I added more cases, the speed would continue to increase.

Evaluation

My preliminary results are better than my final results, and I don’t feel that my results were accurate enough because my preliminary results turned out to be the better set of results, because of this my results aren’t as reliable as they should be. I should repeat the experiment.

My results were accurate to 1 decimal place, I could use more advanced equipment unavailable at school to gain greater accuracy. My plan was detailed enough but I think I could have added a little more to it on how to carry out the experiment. My results also support my conclusion.

To improve my experiment I could take more readings, try the experiment again and draw up a new table and use the average speed from each table to determine an over all average speed.

...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. Trolley Speed

    Further work: In the main experiment I will be working out the average speeds to see whether the height of the ramp is directly proportional to the speed of the trolley. In order to work this out I will be dividing the distance by the time.

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

    takes the paper cake case to fall to the ground, which was the aim of the investigation. The line of best fit proves this, as it is not a horizontal line, which is what it would be if the height did not affect the length of time it takes a paper cake case to fall to the ground.

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

    With these points in mind it is essential that we must keep the same trolley, use the same ramp and keep the mass constant in the primary experiment; and the height constant in the secondary experiment. We will also have to keep the length of the runway the same, just so the trolley has enough time to accelerate.

  2. Physics Coursework: To investigate the Oscillations of a mass on a spring

    3rd experiment apparatus List: 1. Springs (Up to 7 springs) 2. Stand and Clamp 3. 4N of Mass (Load) 4. Stopwatch Diagram of the Apparatus: This experiment was to see whether the number of springs actually affected the time of oscillations.

  1. Resistance coursework

    whether it got hot, I kept doing this till I found the right voltage to use. I then tried using different meters e.g. analog, digital and multimeter. And finally I tested out the different wires to use till I found the correct one for my experiment.

  2. Investigating the Physics of Bunjee Jumping

    Ideally, what extends down must extend back up. Realistically, friction and other forces acting upon the bungee prevent this from happening, and therefore the amount the bungee extends downwards also decreases. The maximum extension of the elastic for 300g is 39.3 cm, but eventually the will rest at its minimum extension, which was calculated in experiment 1 as 8.4cm.

  1. Physics P2 Topic Overview Coursework

    Principle of Conservation of Energy - energy can never e created or destroyed: only converted from on to another. Energy is only useful when you transfer it from one form to another. When something falls, the potential energy is converted to kinetic energy: Kinetic Energy gained = Potential energy lost Power is the rate of doing work.

  2. Pendulum Coursework.

    period will be longer, but the gravitational acceleration will remain the same. I also predict that the value of acceleration due to gravity must be between 9.8m/s� to 10m/s�. METHOD-I set up my simple pendulum like the one shown in the diagram.

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