Follow these steps carefully then complete the calculations on the worksheet. Calculating-magnification. Be able to explain the lens effect and depth of field as it relates to microscope usage. Science 10 Microscope Worksheet: Calculating Magnification. >> Calculate total magnification: Ocular x Objective 2. Be able to calculate the total magnification of your microscope. . << /Type /Catalog Convert the following. The test has 28 questions It can be examined on Paper 3, Part A. Info. Part 1: Estimating Size of Specimens Under the Microscope Purpose: To determine an approximate field diameter for each of the objective lenses on our microscopes. pdf, 256 KB. /MediaBox [0 0 612 792] Recent studies have emphasised the importance of acuity reserve in determining the required magnification optimum reading rate. B. Dickie 4 Physics 30 Worksheet # 3: Conservation of Momentum (1) 1. Tes Global Ltd is registered in England (Company No 02017289) with its registered office … << /Type /Page zhb\`��!Apf�ϛ�S�`�uF���8܂�c ���f��H�Xp�>j���G�x Therefore, you need to have some means of estimating the size. 2 0 obj �ф�gp�컗��4Um�)�D~�_s�6�h\dQ��*Q����]$�e��t��XW���`V��Mg� ��{iN�r8m�ރ?�~m���s$����:Y����n>�O�9Q3��)�2#��ĵ���헻9'E��Ν��RK(D_�7"Ĺ��!�����yB�B�Sy�C�������`s�oC\��!�f��Hƒg)ƶ�x�,i��`#5� 0Pӭ,P�w�B� ��� This website and its content is subject to our Terms and Conditions. With just a few multiple choice quiz questions, you will be able to assess your level of expertise in calculating magnification. a) 3.3mm: _____ b) 0.78 mm: _____ c) 390im: _____ mm d) 4600 um: _____ mm 3. Name:_ Period:_ Calculating Magnification & Size of Structures on Micrographs. Worksheet on how to calculate magnification, with worked example and practice calculations of increasing difficulty. 4500 Drawing a scale bar Assume you made a micrograph of a deer tick. Kestenbaum’s formula for calculating magnification is the reciprocal of distance VA divided by four. endobj <>>> Magnification is defined as the ratio of the size of the image to the size of the object. A mathematical equation may derived that relates the position of the object, the position of the image and the focal length of a curved mirror, either for a converging or a diverging mirror. >> >> Report a problem. /Font << /F01 8 0 R Notes: 1: Atmospheric seeing conditions (the sky) often limits the maximum usable magnification to 250-350x. Note the opening (stage aperture) in the center of the stage. For videos, worksheets and other resources go to ScienceSauceOnline.com 8 b) i) Measure the length of one of the cells in your drawing. Draw a line on the cell in your drawing. How fast will the man / ball combination be moving after the ball is caught by the man? Categories & Ages. This website and its content is subject to our Terms and Conditions. Using the scale bar, calculate the diameter of the Bacillus coagulans cell in the electron microscope image above (show your work). expression A variable that represents a Worksheet object. Note: The calculator has two settings for displaying a floating point number: NORM1 (default setting) and NORM2. 11 1 p qf yq' M yp pf q p f From last equation: q = -pM Substituting for qin second equation gives . /Filter /FlateDecode A: This worksheet is put together using a range of sources, some of which have been on TES previously so thank you! You want to draw a scale bar representing an actual For example, a plant scientist might want to compare the relative sizes of pollen grains from plants in the Calculating Magnification Magnification is the number of times larger an image is compared with the real size of the object. Mirror and Magnification Equation Notes_7_SNC2DE_09 - 10 Curved Mirror Equation Ray diagrams for mirrors take a considerable time to draw and are prone to errors. . You observed the tick under a stereoscope at 20x magnification and know the tick’s actual length is 2.0 mm. Converting Measurements, Estimating cell size, Calculating Field of View, Scale 1. a) A converging mirror has a focal length of 15 cm. ! Selection File type icon File name Description Size Revision Time User; Ċ: Distance-TimeGraphs.pdf View Download: Distance-Time Graphs Worksheet 839k: v. 1 : Sep 9, 2013, 2:51 PM After completing the worksheet you should be able to: understand the different units of measurement involved in microscopy, and be able to convert from one to another perform calculations using a formula to obtain the magnification or the actual size of an object as seen by any type of microscope. In order to calculate magnification you need to divide the size of the image by the actual size of the specimen. Introduction Microscopes are a basic and fundamental piece of biological equipment. expression.Calculate. An object is placed (i) 40 cm, and (ii) 10 cm from the mirror. <> 2: An exit pupil size (diameter of light beam as it exits eyepiece) over 7.5mm might be too large for telescope designs with central obstructions (i.e. For example, a plant scientist might want to compare the relative sizes of pollen grains from plants in the same genus to identify to help identify different species. About this resource. endobj endobj View Calculating Magnification lab WS.pdf from BIO 222 at University of California, Los Angeles. /Parent 2 0 R magnification is 4,500x. In each display setting, a number is automatically displayed in scientific notation outside a preset range: • NORM1: 0.000000001 x 9999999999 • NORM2: 0.01 x 9999999999 (FIX mode TAB = 3) FIX DEG. After completing the worksheet you should be able to: understand the different units of measurement involved in microscopy, and be able to convert from one to another perform calculations using a formula to obtain the magnification or the actual size of an object as … 4 5. What are the possible magnifications of a microscope with an ocular marked 10X … Other resources by this author. << /Length 1573 The specimen is magnified onto the graticule by the magnification of the objective. Magnification Practice Worksheet Image Size = size from magnification, sometimes called measured size or measured length ... 1. >> stream (click on the green letters for the solutions). v��U�4��EF��c"c@��f"9,�U �F�2P��,�Ɛ��H3�ϏY 3 0 obj Calculating Compound Lens Magnification. Be able to identify cell parts on the cell model. endobj Try to calculate the magnification of this pollen grain. 5. Remarks . /XObject << /XIPLAYER0 6 0 R The magnification. Calculating the Magnification of a Telescope 32 A telescope consists of an objective mirror or lens and an eyepiece. So, the actual amount of specimen superimposed on the graticule is: 0.1mm ÷ Objective magnification Typically this gives the following calibrations (with an eyepiece graticule 10mm in 100 parts): Objective Magnification Each small division Equals (in mm) >> Calculate the object’s change in velocity. Magnifying Power A compound microscope has two sets of lenses. Converting Measurements, Estimating cell size, Calculating Field of View, Scale 1. V��]C���wP���ۃ����������wV������Z��^a�>���Ġ�b�[�.�c�P�,E�5�Xh��*և��_����7�����.G� �̟xY[��f�}�o��p�J�p)�a����rlw����2�ƇP���t��?��?wM�hT#/x� �T����&8��0/!V�ň��hΏ��|�G���C��)TRl x��[�sܶ�]3��#/#�ċ��N�Jݩ'�Dm���K��w ��q�"��]�.>~X,@��r}���˷�H��9y��%yqs~�� %�����3J2���*K3&H��i%��:}�SA>��g������w�g����%K~;,gE��]�^����������p���,-JW�mB�}y�ﻙHV��Y����Ov�p�%���.����~�U�8��?��� ,�iU���*ͪp_�&xy*��ľ4ed�{�����~��g6�7,0y%S�GU��&/1�������V�������_=�0J�m�S�����&. 1 0 obj Microscope Magnification Objectives After completing this worksheet, you will be able to determine the magnifying power of a microscope and the size of the field of view.You will be able to esti-mate the size of the specimen you are viewing, in micrometers (µm). Calculate the impulse experienced by the 4.00 kg object represented in the graph below. with increasing magnification. 2 0 obj Calculating-magnification. of a biological specimen is calculated using this equation: \[magnification =\frac{measured~size}{actual~size}\] Question. Calculate the missing values in the table below: Eyepiece Lens Low Power Objective Medium Power High Power (4 X) Objective (10 X) Objective (40 X) lox 40X 400X 15X 150X 2. The relationship between these three values can be ID: 1356063 Language: English School subject: Science Grade/level: Grade 5 - 6 - 7 Age: 8-14 Main content: Microscope Other contents: magnification Add to my workbooks (0) Download file pdf Embed in my website or blog Add to Google Classroom %���� Syntax. (VA) to calculate required magnification for low vision aids. << /Type /Pages . Creative Commons "Attribution. Follow these steps carefully then complete the calculations on the worksheet. Length of cell = _____ (remember the units!) About This Quiz & Worksheet. How to calculating the magnification of your biological drawings and how the calculate the actual size of an organism. Extension Microscope Worksheet: Calculating Magnification. Activity 1 Calculating magnification of an image using it's scale bar The three images below show a worked example of how to calculate sizes of cells organelles from electron micrographs step by step. Magnification was usually underestimated when compared with the final magnification prescribed. >> Example 5: Derive an expression for calculating the magnification of a lens when the object distance and focal length are given. Worked Example In Biology class, Judy drew a diagram of a worm. Try to calculate the magnification of this pollen grain. As the figure shows, when B > A, it appears as though the image of the tree is bigger than its actual image at the focus of the telescope objective. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> << /ProcSet [/PDF /Text /ImageB /ImageC /ImageI] 2. <> Putting it in a triangle helps. Calculate the position of the images formed by the fol-lowing concave lenses. Calculating Magnification. SHOW ALL WORK! Calculating magnification. Determine the image distance in each of the following. D)} >> More available from www.ScienceSauceOnline.comA simple video showing how to calculate the magnification of something, using onion cells as an example. Background Information: When viewing a small organism through the microscope, it’s usually necessary to have some idea of its size. (24 cm, -30 cm) b) A diverging mirror has a focal length of -20 cm.