0000007652 00000 n If you find that the connecting wires are not long enough, do not join two pieces of wire. 0000025897 00000 n Stir the water or liquid in the vessel constantly during the experiment so that the temperature is uniform throughout the water. Replies. (Note: Do not use the thermometer as a stirrer), Do not place the thermometer at the bottom of the beaker when the water is being heated. Your email address will not be published. official was 'distracted' during fatal crash. 0000003891 00000 n SIMPLE PENDULUM EXPERIMENT Inference: ... Pls state the value of the constant you deduced and the estimated errors I don't get this. Kingstown Instead, ask for a longer piece of wire. 0000001548 00000 n a glacier moves a the rate of 43.0 meters per year. Replies. METHOD: An experimental pendulum is suspended successively about several axes at different points along its length and the period about each axis is observed. If the reading fluctuates, it means there is a bad connection in the circuit, Make sure there is no ‘kink’ in a bare resistance wire especially when you have to measure the length of the wire accurately, Switch on the circuit for a few seconds before taking a reading and then switch it off immediately. types of experimental errors: random errors and systematic errors. A set-square can be used to minimise parallax errors, Make sure the lens is upright and parallel to the screen, The illuminated object should be placed at the same height as the optical centre of the lens, Read the meters (voltmeters and ammeters) in such a way to avoid parallax. When reading meters such as voltmeters, ammeters etc, parallax errors can be minimsed by viewing the pointer from directly above such that the pointer coincides with its image reflection in the glass. endstream endobj 338 0 obj<>/OCGs[340 0 R]>>/PieceInfo<>>>/LastModified(D:20061122164118)/MarkInfo<>>> endobj 340 0 obj<>/PageElement<>>>>> endobj 341 0 obj<>/Font<>/XObject<>/ProcSet[/PDF/Text/ImageC/ImageI]/ExtGState<>/Properties<>>>/StructParents 0>> endobj 342 0 obj<> endobj 343 0 obj<> endobj 344 0 obj<> endobj 345 0 obj[/ICCBased 366 0 R] endobj 346 0 obj[/Indexed 345 0 R 255 370 0 R] endobj 347 0 obj<> endobj 348 0 obj<>stream Also lining the container with good insulating material such as cotton or wool can help to minimise heat loss. We are also calculating kinetic energy and gravitational potential energy. <]>> 0000015049 00000 n The difference between the systematic and random errors can be seen by repeating a measurement of a physical quantity several times under the same conditions. Here is a summary of some of these sources of errors and how to avoid them. Reply. ��QPHI٢��� S�BP���0�b66�@vP�b>�%�8� =v�G Reply Delete. 0000010729 00000 n How would time flow if we stayed absolutely still. 0000012379 00000 n what is centripetal vs centrifugal in terms of circular motion? We are also calculating kinetic energy and gravitational potential energy. CSEC® is a registered trade mark of the Caribbean Examinations Council (CXC). 0000004808 00000 n 0000024756 00000 n Sources of errors in mechanics experiments. I really found this site interesting.....Many thanks . experiment 10: Compound Pendulum OBJECT: To study the properties of a compound pendulum, and to determine the acceleration due to gravity by the use of such a pendulum. 337 36 While writing up your lab report, you will often have to mention various sources of errors that you encountered while doing your physics experiment that could’ve affected your final results. When reading a measuring cylinder or thermometer, parallax errors can be minimised by viewing the reading at eye-level and at the meniscus. calculate the length and compare it to the real length? This experiment uses a uniform metallic bar with holes/slots cut down the middle at regular intervals. Check this by shaking/tapping the connecting wires lightly at each part of the circuit and observe the ammeter’s reading. 0000024525 00000 n Still have questions? If it has a cause, it can only be eternal? �t��Z�Z?/ �h����M it’s not possible to conduct a perfect experiment. There are sources of error in measuring the period, but those can be minimized by various means, such as measurement over many periods, or photocell and counter methods. x�bb�c`b``Ń3� ����ԍ� �� 0000004400 00000 n Required fields are marked *. They make for good material to put in the discussion part of the lab report and usually indicate that you have a fair understanding of the limitations of the particular physics experiment that you were doing. ������ƌ7Op/8t0��Ő�����Ӥ%�y����5K���!8P������ȭ,��% B�D Join Yahoo Answers and get 100 points today. 0000002858 00000 n (This may or may not be possible depending on the lighting and how reflective the glass covering the pointer is). Experiment 9: Compound Pendulum A compound pendulum (also known as a physical pendulum) consists of a rigid body oscillating about a pivot. Timing oscillations. 0000025044 00000 n 0000006615 00000 n 0000001982 00000 n H���Mo�0���. xref St. Vincent Experiment 1: The Compound Pendulum A simple pendulum consists of a string (of negligible mass) attached at a pivot point and a mass at the other end. 0000002414 00000 n 0000009005 00000 n Depends on what you are trying to achieve by this experiment. 0000002979 00000 n trailer 0000005956 00000 n 0000001841 00000 n SmartStudy Solutions is an independent company and has not been authorised, sponsored, or otherwise approved by the Caribbean Examinations Council. 0000011603 00000 n Place the pins vertically upright (Check with a set-square), Place the the pins used to locate the path of the light ray more than 6 cm apart to minimise errors (Check that pin-pricked points are clearly marked and labelled), Use the view from the base of the pins when aligning pins in a straight line as the pins may not be perfectly upright, Measure the object and image distances along a line parallel to the principal axis. Your email address will not be published. DOJ alums: Trump reelection could be 'point of no return', Iconic restaurant chain files for bankruptcy, For a closing argument, Trump attacks LeBron, Terry Bradshaw helps stranger in viral video, Don't know how you caught COVID-19? 0000008052 00000 n 0000004137 00000 n Show that you are aware of the limitations in your practical and include them where necessary. Remember your physics experiment lab report should include some sort of error discussion. 0 0000005716 00000 n You're not alone, Trump threatens to send in lawyers after election ends, Civil rights groups in Kansas City send warning to NBA, Fox ratchets up parenting spat with estranged husband, Chauvinism driving Black men to vote for Trump: Ex-NAACP head, Trump forces Fauci into difficult balancing act, Top S.D. Measurement, Mechanics, Practical Help, Scientific Method. 0000008185 00000 n (Make sure that starting temperature for both experiments are the same), Avoid heat transfer by convection by switching off the fans and closing windows and doors, Use lids where possible to reduce heat loss by convection. 0000002902 00000 n Thank you very much .It really helped me with my physics practical report. x�b```b``}��������π �@1V� ��u�(������z�� 2y����ܬ�VFs��{���_��g� ���٢��58 © 2020 SmartStudy Solutions — Powered by WordPress. 0000003318 00000 n Overheating may lead to over-expansion of the mercury thread resulting in a wrong reading and in some cases breaking the thermometer, Take temperature readings only when they are steady, When comparing heat loss due to a change in, for example, the colour of a cooling vessel, make sure that all parameters remain the same except for the colour of the vessel. %PDF-1.4 %���� Unknown 18 July 2018 at 05:31. 0000001364 00000 n 0000006837 00000 n How to find g from graph. Having inaccurate instruments or estimating the measurements can cause errors. %%EOF The Universe cant magic into existence, it has to have a cause. This is to avoid unnecessary heating in the resistance wire as a change in temperature can affect the resistance.

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