Name___________________________ Date____________________________ Teacher__________________________ Period___________________________ Science Quiz – 50 points Part I – Lenses and Magnification Directions- Answer each question as concisely and accurately as possible. Be sure to show your work on your math problems. (2 pts. each) 1) Draw a picture of a concave lens and show how light bends as it passes through it. 2) Your microscope has an eyepiece with a magnification of 6x. The magnification of the objective lenses are 17x, 53x, and 24x. What is the total magnification when using high-power? 3) If the eyepiece of a given microscope is 4x and the total magnification of the specimen you are viewing is 92x, what is the magnification of the objective lens you are using? 4) Complete the chart below using your knowledge of microscopes. (2 points per answer) Type of Microscope compound Number of Objective Lenses Part V – Microscope Parts and Functions Directions- If the part is given then write the function. If the function is given then write the part. Write your answers on the correct line below the picture. (2 points each) 5) ____________________________________________________________ 6) ____________________________________________________________ 7) ____________________________________________________________ 8) ____________________________________________________________ 9) ____________________________________________________________ 10) ____________________________________________________________ 11) ____________________________________________________________ 12) ____________________________________________________________ 13) ____________________________________________________________ 14) ____________________________________________________________ 15) ____________________________________________________________ Part III – Measuring Practical (3 points each) Directions- Accurately obtain the correct measurement for each problem below and place your answer on the line. Be sure to label your answer or you will lose points. 16) How many milliliters of water are in the graduated cylinder below? Answer = _________________ 17) What is the temperature shown below in degrees Celsius? Answer = _________________ --over— 18) What is the correct reading of the mass on this triple beam balance in grams? Answer = _________________ 19) What is the correct reading of the mass on this triple beam balance in grams? Answer = _________________ --over-- 20) What is the diameter of the circle (distance across the circle) in millimeters? Answer = _________________ 21) What is the length of the solid line connecting letters “A” and “D”? Use millimeters. Answer = _________________