Margarine Tub Essay

Investigate how the mass is going to affect the distance travelled with a weighted margarine tub when it is propelled along a catwalk by a extended rubber music group Planning A Speculation I foresee that since the mass of the margarine tub increases, the distance went by the tub will decrease. I think this because as the mass increases the surface area friction will likely increases; this kind of increased friction will cause the thing to decrease and stop quicker and therefore in a shorter distance. The method for kinetic energy is definitely: Kinetic strength = mass x speed squared.

When ever any mass is powered along a runway, that travels a particular distance. If the mass is definitely heavier in that case travels a shorter length, and when it can be lighter this travels a longer distance because of the forces working on it. It will also travel an extended distance because of the increased energy. I expect that the graph will not be an aligned line due to velocity square-shaped part of the formula; this will differ the gradient of the type of best fit.

The gradient changes because you are not multiplying the velocity by a constant, but independently so the bigger the velocity, the greater the number will increase by the moment squared. Because of this , the lean is higher at the start from the graph. Factors Controlled factors: The managed variables listed below are the length the rubber music group is expanded at, as well as the distance in the floor right up until the beginning of the runway. Independent variable: The independent varying here is the mass of the margarine tub because I want to observe how the mass affects the length traveled.

Centered variable: The dependent variable here is the length travelled by the margarine tub. Expected effects Mass (g) Distance travelled (cm) 15 Planning N Apparatus 1 . One stretchy band- to propel the object off. installment payments on your A meter ruler- to measure the length travelled. 3. A margarine tub. 5. Sand- to alter the mass of the subject. 5. A stool- to keep the band.

6. Scales- to measure the mass in the margarine tub. 7. A measurement sheet- to measure how far My spouse and i pull again the band. 8. An easy surface- to undertake the try things out on. Strategy to investigate how mass affects the distance travelled by a projectile when powered of an band; I am going to test out a margarine tub stuffed with sand. I will vary the number of sand My spouse and i put in the tub to create diverse masses; I will use public 50g to 500g, experimenting every 50g.

I decided within this range since it will make a large range of effects which can be conveniently analyzed and plotted over a graph. Let me stretch the elastic band about two of the legs in the stool; this will likely hold the band taught, in order to propel the tub off from it. Let me stand the stool over a large sheet of paper with centimetre measurements on it running in the direction from the elastic band; so I can measure, in centimetres what lengths I take back the tub around the elastic band.

Let me measure in the base in the tub to create it more accurate. I will situation the 0 end of the ruler in where We pull again the tub and band on the dimension sheet, that way I will be computing the complete range travelled by projectile. Let me measure through the same end of the tub when I take back the elastic band and once I measure how far it has travelled. Let me measure towards the nearest centimetre because it is the best degree of reliability, and I can measure across with one more ruler to help make the measurement blood pressure measurements more accurate.

I am using a way of measuring sheet rather than a Newton metre to measure how far back I move the elastic band, because the Newton metre only went about 10 Newton’s and this power didn’t pull back the elastic band much enough to propel the projectile the right distance to measure. This will make it tough for me to acquire an appropriate array of accurate results. I need to be sure I don’t stretch the elastic band too much that I reach the elastic limit with the elastic band.

Merely do stretch the band beyond the elastic limit, as stated in Hooke’s Rules, the elastic band will react inelastically therefore it won’t go back to its unique shape. Info Collection Mass (g) Length Travelled you (cm) Range Travelled two (cm). Distance Travelled several (cm) Normal (cm) The table previously mentioned shows my personal results; I measured to the nearest half centimeter although I was collecting my benefits and worked out the average towards the nearest millimetre.

As you can see there may be an abnormality, (81 cm for 50 grams) you are able to tell this really is an abnormality because it is practically double of some other two experiments. This anomaly will make an improvement to the average, so I will not include it in my final graph. Data Processing This kind of graph shows my effects and the abnormality, I plotted the factors using the uses.

The point for 50g can be higher than it ought to be, so there must have been a factor which damaged this end result when I was doing my own experiment. This graph really does look comparable to my predicted graph i explained, and this shows that my prediction was correct. I actually took out the anomaly via my desk and then determined the average of 50g making use of the first two results with the 50g experiment. I then drawn another chart, but this time with no anomaly: The trend in the graph shows that while the mass of the margarine tub boosts, the distance journeyed by the tub decreases.

This is correct mainly because as the mass increases the surface rubbing also increases; this increased friction triggers the object to slow down preventing quicker and therefore in a shorter distance. Summary and Analysis The formulation for kinetic energy is: Kinetic energy = mass x speed squared. As the kinetic energy is known as a constant, the queue of best suit is not only a straight range because of the velocity squared area of the formula; this will vary the gradient of the line of best suit.

The lean changes since you are not multiplying the velocity with a constant, yet by itself so the larger the velocity, the more the quantity will increase by when square-shaped. This is why the gradient is definitely steeper at the beginning of the chart. The basic tendency of the chart shows that the length decreases, in a lowering rate, because the mass increases.

This is exactly what I predicted would happen, and it was accurate. I are pleased with my personal results and feel that they are really as appropriate as I will make them. I actually measured the distances towards the nearest fifty percent centimetre because was a proper degree of precision and made sure the ruler was in the best position just before taking each reading. Merely did this experiment once again, I would most likely investigate multiple factor, and find out the effect they may have on each various other.

For example I possibly could investigate how long an object trips when powered of an elastic band along a great oiled or greased area. Also I might investigate even more weights to ensure that my brand of best fit much more accurate on my graph, I would also lengthen the range of weights to verify that this manufactured any big difference. My percentage error was 14%, I worked this kind of out employing my expected table of values and my real table of values, I actually used the formula Percentage error = (value expected value / predicted value) by 100. I had fashioned one anomaly whilst collecting my effects, so there must have been an issue which afflicted this effect when I was doing my own experiment.

This was probably a human error of misreading the space on the ruler; however it might have been any of the elements explained around the first web page. Finally, I am pleased with my outcomes and total experiment and i also feel I produced an accurate set of info.