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

Investigating how the velocity of a ball varies with the height of its release on a slope.

Extracts from this document...

Introduction

Investigating how the velocity of a ball varies with the height of its release on a slope. Safety There are no safety precautions needed besides normal laboratory safety rules. Variables * The gradient of the slope. * The height of the balls release. * The speed of the ball. All other factors will stay the same. * Material of the slope. * The horizontal surface the ball will travel along. * The same ball. * The stopclock used to time the experiment. Preliminary Experiment Apparatus The apparatus I will use is: a plank of wood, a ball, a timer, a ruler and a clamp. Method The apparatus will be set up as above and the ball will be released from various heights and timed from when the ball reaches the bottom of the plank to the end of the ruler. The gradient will be measured using a protractor. Conclusion From the preliminary experiment, the experiment was found to be safe and no other safety precautions will have to be made. The height was best at a maximum of 0.22m because any greater and the ball rolled too fast to measure the time it took. ...read more.

Middle

This will give us 8 results, which should be sufficient for a straight-line graph. When the ball reaches the end of the plank the stopclock will be started. When the ball stops rolling or reaches 1m the stopclock will be stopped. This will be done for each height the ball is released from. The time and distance travelled will be recorded and the speed at which the ball was travelling will be calculated for each height that the ball was released from. Measurements; Height will be measured in m. Time taken in seconds. Distance travelled in metres. The speed in m/s. Height (m) 1 2 3 Average Time Taken Distance Traveled (m) Speed Speed2 0.01 2.68 2.38 2.46 2.51 1 0.4 0.16 0.04 1.36 1.26 1.31 1.34 1 0.75 0.56 0.07 1.29 1.19 1.26 1.25 1 0.80 0.64 0.11 0.91 0.85 0.86 0.87 1 1.15 1.32 0.14 0.83 0.87 0.78 0.83 1 1.2 1.44 0.17 0.71 0.64 0.65 0.66 1 1.5 2.25 0.20 0.67 0.65 0.63 0.65 1 1.54 2.37 0.22 0.62 0.60 0.60 0.61 1 1.6 2.56 Conclusion The graph of v against h shows that as height from which the ball is released increases, the speed of the ball increases. ...read more.

Conclusion

would therefore be less than the value of v as the ball left the plank. Large h, High Speeds These results fall above the straight line. At high speeds the uncertainty in the measured time taken due to the reaction times of the experimenter is increased. Improvements A better method is needed to measure the speed of the ball just as it leaves the plank of wood. This could be done by making the ball pass through a light gate. The output from the light gate could be used to control a stopclock. This would eliminate the uncertainty due to human reaction times. Also known as Human Error. Where did the energy go? As the ball leaves the plank it is not only moving along but it is also rotating. This means there are two kinds of kinetic energy. Translational Kinetic Energy = 1/2mv2 Rotational Kinetic Energy = 1/2Iw2 I = a constant for the ball. w = the angular speed of the ball. Since the angular speed of the ball depends upon the speed at which the ball moves along, it turns out that it is still true that v2 is directly proportional to h. Richard Ellis ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Electricity and Magnetism 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 Electricity and Magnetism essays

  1. physics of the bouncing ball

    Repeating each height meant I could get even more accurate results and has very reliable evidence when proving or undermining my hypothesis. The averages were calculated scientifically and accurately thus making them reliable. When the drop height was 100cm the majority of the balls bounced back up to at least half the original drop height.

  2. Investigate how the height a ball is dropped from affects the re-bounce of it.

    Towards the end of my experiment, the graph shows a clear place where a factor influenced my results. The last three points are some what away form the trend of the rest; this could be because I had reached a point where terminal velocity concluded.

  1. Find the realtionship between gravitational potential and kinetic energy

    The readings should be taken at 2-5 cm intervals, and a minimum of three readings should be taken on each height to work out an average (this makes the end result more accurate). Below is a clear list of the ranges and amounts in my two experiments.

  2. See how changing the height that a ball is dropped affects: the height to ...

    Then the ball will try and spring back to its original shape, converting the elastic energy into kinetic energy again. Energy is lost and the amount depends only on the elasticity of the ball itself. The harder it is to deform a ball, the more efficient it is at bouncing - that is, the elasticity is greater.

  1. Investigate the correlation between the height at which a ball is dropped and the ...

    its useful energy during the bounce into wasted thermal energy, and also some of its energy is wasted as sound energy as it hits the ground. Also the height that the ball bounces to will be directly proportional to the height it is dropped from, as the same percentage of

  2. The aim of this coursework is to investigate how the height in which the ...

    Gradually the energy will be low graded by heat and sound, which are inefficient energies. Eventually the ball won't have enough energy to bounce back again due to the energies being wasted on sound and heat and so the height at which the ball bounces back will decrease.

  1. To investigate the factors that affect the height at which a ball bounces.

    How Energy is Transferred as a ball falls. In ideal conditions. When the ball of mass 0.02kg is 1m above the ground, it has"200g x 10m/s x 1m"(2000 J) gravitational potential energy. As it falls, this energy becomes kinetic energy. And when it has fallen half-way to the ground (50cm)

  2. The Bouncing Ball Experiment

    Gravitational potential energy is the energy stored in an object as the result of its vertical position (i.e., height). The energy is stored as the result of the gravitational attraction of the Earth for the object. The higher a ball is dropped from, the more GPE it has, which is

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