Questions


October 2022 2 1 Report
SCIENCE 7 ASSESSMENT #1 DIRECTION: Write the letter of the correct answer on the space provided before each number. B 1. An animal cell being observed is seen at the topmost part of the field of view under the LPO. If you want to center the specimen, which direction should you move the slide? A. downward or towards me or the user B. forward or away from me or the user C. move to the right side of the user D. move to the left side of the user 2. What will you do to the used slide and coverslip after removing them from the stage clip? A. return them in their proper places B. wash and wipe or air-dry them C. dispose them properly D. place them in direct sunlight 3. Why should the mirror stand on its edge with the concave side facing the user? A. to protect it from dust B. to protect from direct sunlight C. to protect it from reflecting Images D. to protect it from breaking 4. Why is it necessary for the specimen to be observed under the microscope to be thin? A. so that the image will be clearer B. so that light could pass through the specimen C. so that the image would be bigger D. so that a high magnification objective can be used 5. Which of the following can be observed using the light microscope? A. acacia bark B. piece of stone C. five-peso coin D. tip of a leaf 6. What is the total magnification of a microscope with two lenses when one lens has a magnification of 15x and the other lens has a magnification of 30x? A. 15x 8.45x C. 30x D.450x 7. Which of the following shows the letter "e" under the microscope? A e B.Ə C. A D.3 8. The following are steps in storing microscope, EXCEPT; A. turn the nosepiece until the LPO is in place B. slowly lower the body tube C. remove the eyepiece and place it in the socket D. rotate the diaphragm until the largest opening Is in position 9.f the cell being observed has been magnified 200x under a 40x HPO, what is the magnifying power of the eyepiece used? A. 10x B. 40x C. 5x D. 100x hlank to complete the statement. Choose your answer from the word bank work ​

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