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

The Pulley System Investigation

Extracts from this document...

Introduction

Raja Ali 10B                 Ms. Aleem

The Pulley System Investigation

Aim

My aim is to create a pulley system which must consist of one, two or three pulley systems so that the results are recorded.

I will also investigate and find the difference in the value of the force obtained for the three different pulley systems.

Hypothesis

I should be able to pick up 500g with one pulley but to make this easier I will use a pulley system, if I use one pulley that the force needed to lift this amount of weight should decrease by 25%. Off course this is my hypothesis

Apparatus

  • Nylon Rope (3 Metres long Rope)
  • Three pulley systems.
  • 500g mass load force meter. (Newton Meter)
  • Clamp, Boss, Retort Stand.
  • Loop and Weights.

Safety Points

The first thing that you must always be concerned about should be the safety of yourself and people around you. Safety should always be looked at seriously as this could alter the results and the test could turn unequal and unfair.

You must always be concerned about Safety as this could always make the test more equal and Fair.

...read more.

Middle

Adaptations - To help make the experiment more efficient, the stand was were unstable; I got a friend to hold down the experiment whilst i was pulling the Newton meter.

May I also mention that standard procedure may be different to the procedures which conclude in a Science Based Service.

Science Based Services have much more detailed and quality instructions as well as equipment which give much more accurate readings. These accurate data include materials such as a digital Newton Meter which gives you an accurate reading to three decimal places.

...read more.

Conclusion

We also required adding more pulleys to get a more accurate result as more pulleys would have given us a more appropriate result.

In the Industry

In a laboratory you would use a pulley system simply to get the over all picture. It would be very small machine and the results taken would not be accurate.

In a real world industry people have to move very large heavy items and materials. In an industry there are special separate companies which have the business of just moving items with huge pulley like machines. They take accurate reading of all there uses and determine through past experience of how much weight will be picked up and take on a job with the appropriate amount of pulleys. They have also got more stable and secure equipment which is checked regularly. The difference is our equipment is low graded and has not been specified for any specific weight criteria like there. We are also taking experiments before any real work can be taken up. But they have already got all the information required and choose there machine depending on the weight intended.

Pulleys are found usually on cranes which help pick loads vertically but they use ropes, wires and chains!

...read more.

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)

    The elastic band is pulled back to 1, 2, 3; etc Newton's and fired along the floor. When it stops we measure how far it has travelled using the metre rulers and set square and record it. We discounted totally inaccurate results.

  2. Young's Modulus of Nylon

    0.153 1.67 x109 7.849 2.69x10-8 2.91x108 0.550 0.089 0.162 1.80 x109 8.829 2.69x10-8 3.28x108 0.550 0.102 0.185 1.77 x109 9.810 2.69x10-8 3.65x108 0.550 0.106 0.193 1.90 x109 10.721 2.69x10-8 3.99x108 0.550 0.110 0.200 2.00 x109 11.772 2.69x10-8 4.38x108 0.550 0.115 0.209 2.10 x109 12.753 2.69x10-8 4.74x108 0.550 0.121 0.220 2.15

  1. Helicopter Investigation

    In fact I was dropping it from my height with my arms being placed right above my head as high as I could manage. So I then made sure to measure how high I was releasing the paper helicopter from, I found that with the heels of my shoe and

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

    to get holiday entitlement, to receive minimum standard paid, including entitlement to sick pay, to be treated equally, fairly with respect. [16] Health and safety 2) The main reason for the principle of the health and safety legislation is to protect client, workers and other visitors form potential risk.

  1. Multi-bladed Pumps. Does the number of propellor blades affect the efficiency of a ...

    To measure the volume of water pumped out by the system, I will calibrate the water collection bottle with graduations. To make sure they are very sensitive and accurate, I will use the high quality, high accuracy laboratory glassware available at school for use in chemistry and biology.

  2. In this report I will start by exploring the history of the Computerised Tomography ...

    However, many views or slices produce an image. In figure 2.3 the x-ray beam has been rotated by 90� and another view is obtained. By back-projecting this data onto the image, things become clearer. Two views do not provide a high resolution image; however, hundreds will do. This process provides the image which is then displayed on the operating console, figure 1.2.

  1. The life and work of Isaac Newton Sir Isaac Newton has been considered one ...

    Which profoundly affected the ideology if scientific research. He insisted that the way forward was not to devise abstract hypothesis, but to build theories on the twin pillars of mathematics and experiment. Newtons innovations have become fundamental principles of modern science.

  2. Parachute Investigation

    At this point, the net force is 0 Newtons, and the parachute stops accelerating. Then the parachute will have reached its terminal velocity and it will continue to fall at a constant speed until intercepted by a solid object, such as the ground.

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