Tag: measuring instruments

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Questions Related to measuring instruments

Multiple choice physics measurements and units measuring mass measurement of mass measuring instruments

Burette and Pipette are used to measure mass

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Burette and pipette are the volumetric glassware that are used to measure the volume of liquids (or solutions) mostly in chemistry laboratory. On the other hand mass is the amount of matter in an object which most commonly measured using balance.
Hence, given statement is false.
Multiple choice physics measurements and units measuring mass measurement of mass measuring instruments

Which of the following should not be weighed directly in contact with a balance pan?

  1. glass

  2. ceramics

  3. laboratory chemicals

  4. metal objects
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

balance pan can be used to measure the weight of glass, ceramics as well as metal object but it cannot be used to measure the weight of laboratory chemicals directly as the chemicals can react with the base of pan. Also, weight measurement of the chemicals used need to be very accurate, of teh order of milligram as well, which cannot be done with balance pan.

Multiple choice physics measurements and units measuring mass measurement of mass measuring instruments

The weights should be carried with forceps to :

  1. avoid impressing fingerprints on the weights

  2. avoid heat exchange

  3. avoid the change in its weight due to the presence of moisture and dust particles

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The weights should be carried with forceps to avoid the change in its weight due to the presence of moisture and dust particles.

Multiple choice physics measurements and units measuring mass measurement of mass measuring instruments

The mass at the resting point gives the correct mass of the body, : 

  1. if the resting point of a physical balance coincides with the zero resting point

  2. if the resting point of a physical balance coincides with a non-zero resting point

  3. if the resting point of a physical balance is tilted

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The mass of the resting point gives the correct mass of the body if the resting point of a physical balance coincides with the zero resting point.

Multiple choice physics measurements and units measuring mass measurement of mass measuring instruments

A balance to the true, must satisfy this condition: 

  1. Both arms must be of equal lengths.

  2. Both arms must be made of same material.

  3. Both arms must be of same colour.

  4. Both pans must be of same mass.
Reveal answer Fill a bubble to check yourself
A,B,D Correct answer
Explanation

The conditions that a true balance must satisfy are that both arms must have equal lengths made up of same material and mass of the both pans must be same. Colour of arms has nothing to do with the measurement of mass.