Physics 1.2 - Measurements And Uncertainties

7 Questions | Total Attempts: 554

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Physics 1.2 - Measurements And Uncertainties

Questions and Answers
  • 1. 
    The age of the universe is 14 billion years. How many seconds is 14 billion years closest to?
    • A. 
    • B. 
    • C. 
    • D. 
  • 2. 
    Which of the following is equivalent to the derives unit J? J is the unit of work.
    • A. 
    • B. 
    • C. 
    • D. 
  • 3. 
    If the diameter of an atom is about 100pm, what is diameter in terms of km?
    • A. 
    • B. 
    • C. 
    • D. 
  • 4. 
    Which of the following is SI base unit?
    • A. 

      Degree Celsius

    • B. 

      Ampere

    • C. 

      Coulomb

    • D. 

      Gram

  • 5. 
    A chemist is pouring some solution from a volumetric cylinder to a tube to perform some experiment. Before he pours the solution, he finds the volume of the solution is . After he pours the solution, he finds the volume of the solution is . What is the volume of the solution he pours into the tube?  
    • A. 
    • B. 
    • C. 
    • D. 
  • 6. 
    All the following are all systematic errors except...?
    • A. 

      The flow of air causing the reading of the temperature to change from time to time

    • B. 

      A volumetric cylinder that is used to measure the volume of the liquid has a bump on the cylinder.

    • C. 

      An ammeter shows a current of 0.1 A before we link it to the circuit.

    • D. 

      A student uses a ruler and reads his measurement always on one side of the reading.

  • 7. 
    Which of the following measurements have three significant digits?
    • A. 

      A table is reported to be 1.356 meters

    • B. 

      A fly is measured to be 0.012 grams

    • C. 

      An airplane is as heavy as 500 tons

    • D. 

      A currant in a circuit is 20.0 mA

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