• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3
4. 4
4
5. 5
5

# An investigation to find the stopping distance of a margarine tub.

Extracts from this document...

Introduction

Science coursework

An investigation to find the stopping distance of a margarine tub

Planning:

## Aim: I am trying to find out the stopping distance of a margarine tub when changing the mass.

Variables:I will change the mass of the margarine tub. I will measure the distance the tub travels. To make it a fair test I will keep the margarine tub the same. I will also keep the force I use to pull back the elastic band the same, and will do the experiment on the floor – keeping the surface the same.

Prediction: I think that the bigger the mass of the margarine tub the shorter the distance it will travel. I predict this because I know that friction will be caused.

## Friction is resistance of the motion of one surface over another. Most surfaces are not smooth. The ridges in the 2 surfaces catch against each other – causing friction.

Newton’s second Law of motion:

Middle

4

500

2

Because these results are quite short distances I have decided to use smaller masses to see a wider range of distances. I am going to use 50g – 300g, going up in 50g steps.

Step by step instructions:

Set up equipment as shown in diagram.

Tape a 50g mass in the margarine tub.

Pull the elastic band back using a force of 5 N.

Let the elastic band go and measure and record the distance that the margarine tub travels, from the front leg of the stool to the back of the margarine tub.

Repeat this 2 more times for the 50g mass.

Repeat this process for each mass – 100g, 150g, 200g, etc.

I will collect accurate results by repeating results and calculating the averages. I am going to do this because although I will measure as accurate as possible it is possible that the margarine tub may not travel in a straight line etc.

Conclusion

My results showed a clear pattern (the bigger the mass the shorter the stopping distance.)

I believe that my results were quite accurate. There were no obvious exceptions, as all my results fall close to the best-fit line on my graph, and this was quite easy to draw. To make my results more reliable I also took an average of 3 readings for each mass.

I think that my results are quite reliable. For example the results of the mass 250g were 10cm, 9cm, and 8 cm, when a force of 5n is applied. These are quite consistent, because all 3 are close to the average of 9cm.

What went wrong?

The experiment went fine. The only main problem we had was that we found it hard to get the margarine tub to travel in a straight direction. To overcome this we did 3 tries rather than1 or 2 to try and make the results more accurate.

How could you improve then investigation?

To improve the investigation we could measure the results to the nearest 0.5cm, making the measurements even more accurate.

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

# Related GCSE Forces and Motion essays

1. ## Squash Ball and Temperature Investigation

best fit as expected could also have been effected by the same aspects discussed above such as keeping the temperature constant and the difficulty in reading off the bounce back height etc. The reason as to why most of the results are reliable is that wide ranges of results were

2. ## Practical Investigation Into Viscosity

2.17 2.173 40 2.46 2.37 2.39 2.407 50 2.76 2.71 2.72 2.730 60 2.92 2.96 2.90 2.927 70 3.54 3.50 3.52 3.520 80 6.15 6.10 6.30 6.183 The next section that starts on the following page displays graphically the results and other relevant information of the experiments mentioned in this report.

1. ## To see how the distance, a weighted margarine tub travels, changes as the distance ...

Meaning that the each time the tub was pulled back further, it didn't just increase in distance the same amount each time, otherwise it would of produced a straight diagonal line going up.

2. ## My aim is to find out whether mass affects the distance travelled by a ...

* Margarine Tub (constant) * 50g weights (variable) * 3 Meter Sticks (constant) Method First of all I gathered the equipment I'd need to carry out the experiments and then I set them up (see apparatus list and diagram). I used a stretch of the sports link corridor because there's plenty of space and the surface is relatively smooth (to reduce friction between the tub and floor).

1. ## How Does Changing The Force In An Elastic Band Affect The Distance Travelled By ...

I will then measure where the tub stops. I then record my results and repeat the experiment another two times for more accurate results. I then measure 10 newtons, by pulling the elastic band back using the newton measure and mark out 10N using the chalk. I use the same weights as I know that the tub will not turn over when in motion.

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

(Reading 3) 0.54 0.50 0.52 0.53 Average/ (m.s. -2) 0.52 0.52 0.54 0.53 Changing the Angle of the ramp The angle of the ramp (�) 5.0 10.0 15.0 20.0 25.0 30.0 Acceleration (m.s. -2) (reading 1) 0.54 1.01 1.60 2.10 2.71 3.23 Acceleration (m.s.

1. ## Approximate Stopping Distances

increase by a huge distance from 45 ft to 180 ft which is also a increase of four times. The braking distance increases by four times when you double the speed of the vehicle. The thinking distance is the distance the vehicle travels from when the driver hears or sees something to when the driver responds by applying the breaks.

2. ## Margarine Tub

you can tell this is an anomaly because it is almost double of the other two experiments. This anomaly will make a difference to the average, so I will not include it in my final graph. Data Processing This graph shows my results and the anomaly, I plotted the points using the averages.

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