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

Investigation into the viscosity of golden syrup

Extracts from this document...

Introduction

Investigation into the viscosity of golden syrup

Plan

A large measuring cylinder will be filled to the top with golden syrup.this will be done slowly and at a shallow angle so as to prevent bubbles from forming which would otherwise compromise the reliability of the results. Seven steel ball bearings of different diameters will be selected and their radii measured using a micrometer. Four markers, three centimetres apart from each other, will be placed vertically down the measuring cylinder which will have five centimetres of syrup between the top of the cylinder and the first marker. This five centimetre gap is to allow the ball bearing to reach terminal velocity before measurements are taken so it passes each marker at about the same speed.

        Each marker will be assigned a stop-clock so when the ball passes each marker, the appropiate stop-clock will be started swilst the previous clock is stopped. This will give three similar times that can be used to find an average time and velocity for the balls.

        The ball bearing will be removed after each experiment so as not to affect the next experiment.

A THOUGHT  TO SAFETY

  • No golden syrup will be consumes as it may have come into contact with hazardous materials in the lab and so be toxic, harmful or irritant.
  • Any ball bearings that drop on the floor will be immediately picked up so they are not slipped on.
  • Any syrup spills will be cleaned up so they not present a slipping hazard

Equipment

  • Steel ball bearings  x  2
  • Screw gauge micrometer  =  accurate to ±  0.01mm
  • Golden syrup
  • Measuring cylinder  = accurate to ± 1mm
  • Stop clocks x 3 = accurate to ± 0.01mm
...read more.

Middle

4.46

4.363

5.55

5.55x10-3

3.70

3.46

3.56

3.573

6.35

6.35x10-3

3.24

3.22

3.09

3.183

7.67

7.67x10-3

3.13

2.55

2.56

2.747

Velocity = distance travelled(m) / time taken(s)

3cm = 0.03m

Table of ball bearing velocity

Ball radius(m)

Radius(m2)

Average time taken

Veloctiy(ms-1)

1.57x10-3

2.481x10-6

26.983

1.111x10-3

1.72x10-3

2.976x10-6

18.033

1.664x10-3

4.20x10-3

1.764x10-6

5.423

5.534x10-3

4.75x10-3

2.256x10-6

4.363

6.876x10-3

5.55x10-3

3.080x10-6

3.573

8.396x10

...read more.

Conclusion

The screw gauge could be clamped to different pressures so the results may have varied where consistency was required.

Sketch shows how

Viewing angle can

Changes at what time

The above moment was reached

Limitations

Since it was a human jugding when to take results, this experiment would not work for fluids of such a low viscosity that objects could pass all the markers before the eye could follow and track it. Computers and electronic sensors would be needed to replace the human element in the experiment.

        If the experiment could be done again lasers would be used instead of my eyes and the markers. More accurate results would results from more accurate measuring devices would be needed such as screw gauge micrometers that measure whilst clamping with the same pressure each time.

        Each experiment would be repeated more so as to get a morea ccurate average and the experiment  would be done in a temperature controlled environment so the viscosity remained the same.

...read more.

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

  1. Peer reviewed

    Catapult Investigation

    3 star(s)

    Different surfaces have different friction level. A good example of this is rubber and plastic. (rubber tends to act with more friction on objects and plastic less) The data collected in the preliminary experiment helped us a lot in the final experiment. Without the trial experiment we would not have known how far to pull the elastic band back.

  2. Bouncing balls

    Like I said, I will put a ruler against the wall, 1-meter long, and throw the ball from that height. I will make sure my results are reliable by doing this experiment at least three times. This will give me a more accurate result.

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

    easily absorbed by cells, whereas beta and gamma radiation are not as dangerous because they are less likely to be absorbed by a cell and just pass through it.

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

    The line should be an asymptote to the x-axis. Initial analysis and conclusions As for initial analysis, the graph shows that 'upgrading' a propeller from 2 to 4 blades only slightly reduces the amount of time it takes to pump 2L - at 35W input power, a 2-blade propeller takes 235 seconds and a 4-blade propeller takes 200 seconds.

  1. Physics Investigation: Speed

    When the car has reached the bottom (point 'B') of the ramp and your partner has stopped the stop watch, write down the time it took the toy car to come down the ramp. Also write the height and the distance of the ramp.

  2. Parachute Investigation

    Prediction When dropped, each weight will initially cause the whole parachute to accelerate, and as it gains speed it encounters an increasing amount of opposing upward air resistance force. The parachute will continue to gain speed until the air resistance hitting its surface increases to a large enough value to balance the downward force of gravity.

  1. See how the angle of a ramp affects the speed of a cylinder moving ...

    Lastly, the metal cylinder must be used each time, also to endorse fair testing and continuity. Diagram In the diagram shown on the next page, I have shown exactly how I planned this experiment to work. It was a success in my opinion, as it was fair, safe and reliable in equal measure.

  2. Force and Newton's three Laws

    So lets write this in its full glory. It's perhaps the most important law in the whole of physics! Force = mass x acceleration F = ma The units of this force are kg m/s2, and in honour of the great man we call this one Newton.

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