The same rule will be used throughout the experiment, so that mass and width etc. will remain constant. The second experiment I will do is the compound pendulum, with this I will be able to work out the time period, and see if there is a relationship between the sag and time period. My graph had a straight line of best fit which represented the results gained. The graph had a straight line travelling diagonally upwards towards the right, this is because as the force of the weight increased the depression of the ruler also increased, and this is due to Hooke’s law. I drew a curved line of best fit for when the force used way 9.8N; this was because of elastic limit which is explained in analysis. There were some irregular results gained from some of my graph, but they were not seriously out of line from the best fit. These could have occurred from a number of errors:

Wood Metre Ruler - Etsy UK Wood Metre Ruler - Etsy UK

I think the results I gained from this experiment were sufficient enough for me to come to a formal conclusion. The results prove that the extension of the rulers depend upon the force of the weight. If the rule was securely glued together they would no longer slip, but the tendency to do so would exist just the same. This problem could be fixed if the rule wasn’t held down but rather on top of two equally level object.Growscroll ® Modern Growth Chart / Height Chart (Unique Australian Trademarked Customizable Wood & Canvas Growth Chart) Knowledge of these properties is obtained through experimentation either in the employment of the wood in practice or by means of special testing apparatus in the laboratory. Owing to the wide range of variation in meter rulers it is necessary that a great number of tests are made and that so far as possible all disturbing factors be eliminated. For comparison of different kinds or materials a standard method of testing is necessary and the values must be expressed in some defined units. For these reasons laboratory experiments if properly conducted have many advantages over any other method. One that is easily bent or otherwise deformed is flexible. Flexibility is not the exact counterpart of stiffness, as it also involves toughness and pliability.

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When the distance between the supports increased the sag also increased, but not in a proportional way. As you can see, my graph produced a curve and this was due to the bonds in the wooden rule reaching it elastic limit. Meter Rule/Folding Rule/Tool/Christmas/Father's Day/Birthday Gift/Present/Dad/Kids/Folding Ruler/Personalised The length of the rule may not have been exactly correct, as all I did was lay it on the table therefore it could have moved when I was adding weights or not been place accurately. As the weight increased, the bonds expand. When the length gets to 0.75M some of the bonds have started to reach there elastic limit. When bonds reach their elastic limit and the weight is taken of they do not return to their original size, making the weight being added have more effect on the structure. To make sure that I do not move when I am taking the readings so that I get the correct results as much as possible.

These stresses may act together, producing compound stresses, as in flexure. When a bow is bent there is a compression of the fibres on the inner or concave side and an elongation of the fibres on the outer or convex side. Useful sewing ruler It is difficult to find a 1 metre sewing ruler at a reasonable price so this fits the bill. Nice to have metal ends so the wood can't split but the metal conceals the first centimetre and a half and the last 1+1/2 . If you want to measure a metre of material then mark a small seam allowance at the same time it is difficult to work out where to mark. The other side of the ruler's markings ends at 36 inches too so it's impossible to compare cm to ins over 36 inches. I will use a longer nail so that the rule will be kept further away from the table, this should eliminate friction through rubbing. When external forces act upon a beam in a direction away from its ends or a direct pull, the stress is a tensile stress. The strain is an increasing. Wooden Growth Chart, Nursery Growth Chart, Wooden Nursery Decor, Baby Height Chart, Personalized Growth Chart Ruler, Kids Nursery Wall Decor

Meter Ruler — SmartLabs Meter Ruler — SmartLabs

wooden growth chart rainbow, ruler height chart rustic vibe, solid wood decoration for a child room, vintage 1th birthday gift, Air resistance: It is assumed that there is no air resistance and 100% of gravitational potential energy is converted to kinetic energy, and vice versa. One object of such investigation is to find unit values for strength and stiffness, etc. These, because of the complex structure of the materials, cannot have a constant value which will be exactly repeated in each test, even though no error be made. The most that can be accomplished is to find average values. On account of the great variability in strength of different specimens even from the same material and appearing to be alike, it is important to eliminate as far as possible all extraneous factors liable to influence the results of the tests. Using only three holes will not allow me to draw accurate conclusions as it is only three different lengths. This will be difficult to fix as it is down to human error. So the best way to resolve this will be to pay as mush attention to the experiment in action as possible.Height chart, Oak faced height chart, Children's Height Chart, growth chart, ruler, wooden height chart, personalised gift, Christmas gift It was difficult to get my horizontal rule level as the clamps which were used to hold the rule were not clamped at the same height compared to each other. It took awhile to get them level and still there may have been a few millimetres or centimetres of difference. If successively larger loads are applied to a body and then removed it will be found that at first the body completely regains its original form upon release from the stress--in other words, the body is ~elastic~. Eventually a point will be reached where the recovery of the specimen is incomplete. This point is known as the ~elastic limit~, which may be defined as the limit beyond which it is impossible to carry the distortion of a body without producing a permanent alteration in shape. After this limit has been exceeded, the size and shape of the specimen after removal of the load will not be the same as before, and the difference or amount of change is known as the ~permanent set~. Elastic limit as measured in tests and used in design may be defined as that unit stress at which the deformation begins to increase in a faster ratio than the applied load. In practice the elastic limit of a material under test is determined from the stress-strain diagram. It is that point in the line where the diagram begins perceptibly to curve.

Westcott 10431 Wooden Meter Stick, Clear Lacquer Finish, 39.5 In Westcott 10431 Wooden Meter Stick, Clear Lacquer Finish, 39.5 In

Meter rule ruler tool father's day birthday present gift dad children folding ruler personalized Christmas In my first experiment I aim to find out how weight and length affect sag. I will only change one variable at a time. I shall do this by setting up an experiment as seen on the apparatus diagram 1. I could have carried out some further work on this investigation to extend and broaden my results for example; I could have done more lengths. I repeated the experiment several times and am happy with the averages I got.Kids Canvas Height Chart,Space Height Chart,Kids Growth Chart,Wall Canvas Decoration for Child's Room or Nursery