Physical Quantities and Measurement

Which one of the following units is not a derived unit?

 
 
 
 

Which of the following is a base unit?

 
 
 
 

9.483 × 10³ m is the standard form of:

 
 
 
 

Which of the following prefixes represents the largest value?

 
 
 
 

The number having one significant digit is:

 
 
 
 

0.2 mm in units of meters is:

 
 
 
 

Amount of a substance in terms of numbers is measured in:

 
 
 
 

Which of the following numbers shows 4 significant digits?

 
 
 
 

A micrometer can be used to measure:

 
 
 
 

The number of significant figures in 0.00650 s is:

 
 
 
 

The least count of a screw gauge is 0.01 mm. If the main scale reading of the screw gauge is zero and the third line of its circular scale coincides with the datum line, then the measurement on the screw gauge is:

 
 
 
 

The ratio of millimeter to micrometer is:

 
 
 
 

The instrument that best measures the internal diameter of a pipe is:

 
 
 
 

Question 1 of 13

Related Questions:

  1. Physical Quantities and Measurement
  2. Kinematics-mcq
  3. Dynamics-1
  4. Dynamics-II
  5. Pressure and Deformation in Solids
  6. Work and Energy
  7. Density and Temperature
  8. Magnetism
  9. Nature of Science and Physics
  10. Q.1 How does physics play an important role in our life?
  11. Q.2 Estimate your age in minutes and seconds.
  12. Q.3 What base quantities are involved in these derived physical quantities; force, pressure, power and charge.
  13. Q.4 Show that prefix micro is thousand times smaller than prefix milli.
  14. Q5. Justify that displacement is a vector quantity while energy is a scalar quantity.
  15. Q6. Screw gauge can give more precise length than vernier calipers. Briefly explain why?
  16. Q.7 Differentiate between Mechanical Stopwatch and Digital Stopwatch.
  17. Q.8 How measuring cylinder is used to measure the volume of an irregularly shaped stone?
  18. Q.9 What precautions should be kept in mind while taking measurements using a measuring cylinder?
  19. Q.10 Why do we need to consider significant digits in measurements?
  20. Q11. How random error can be reduced?