Optical Instruments and Volumetric Glassware

Try these questions

5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.

1. 1. Which piece of glassware has a stopcock and is used to deliver variable, accurately measured volumes of liquid during titrations?

   • A. Measuring cylinder
   • B. Burette
   • C. Volumetric flask
   • D. Beaker

2. 2. A learner uses a microscope with an eyepiece lens marked 5× and an objective lens marked 20×. What is the total magnification? (Give the number only, without the × sign.)

   Type your answer (in ×) in the lesson.

3. 3. When reading the volume of water in a measuring cylinder, which method gives the correct reading?

   • A. Look from above and read the top edge of the curve
   • B. Look from below and read the top edge of the curve
   • C. Keep your eye level with the bottom of the curved surface and read there
   • D. Hold the cylinder in your hand and read the side of the curve

4. 4. What name is given to the curved upper surface of a liquid in a measuring cylinder?

   Type your answer in the lesson.

5. 5. Why must you never turn the coarse adjustment knob while viewing a specimen under high-power magnification?

   • A. It makes the diaphragm close completely
   • B. The objective lens could hit and crush the slide
   • C. It reduces the magnification of the eyepiece
   • D. It makes the light source switch off

More in Introduction to Integrated Science

• ▸Laboratory Accidents and First Aid Measures
• ▸Basic Science Skills and SI Units
• ▸Derived SI Quantities
• ▸Laboratory Apparatus Heating and Mass Measurement
• ▸Classification of Mixtures and Purity Determination
• ▸Physical Separation Techniques for Mixtures
• ▸Community Service Learning Water Purification Project
• ▸Acids, Bases, and Natural Indicators

See every Grade 7 Integrated Science lesson →