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SAI INTERNATIONAL SCHOOL

                                                         Class-6
                                                  Home Assignment
                                                   Subject-Physics

                                           Ch- Measurement and Motion
                       Subtopic- Measuring length of a curved line and estimation


               INSTRUCTIONS:
                   ➢  Please solve or paste the worksheet in the Physics Copy.
                   ➢  For Assertion& Reason question follow the following directions.
                       DIRECTION: Each of these questions contains an Assertion followed by Reason. Read them
                       carefully and answer the question on the basis of following options. You have to select the one
                       that best describes the two statements.
                       (a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
                       (b) If both Assertion and Reason are correct, but Reason is not the correct explanation of
                       Assertion.
                       (c) If Assertion is correct but Reason is incorrect.
                       (d) If Assertion is incorrect but Reason is correct
                       (e) If Assertion & Reason both are incorrect.

               Sl.No  QUESTIONS                                                                      MARKS
                       Which of the following is used to measure the length of a curved              1

                       surface?
               1.      a. Only a metre scale
                       b. Only a thread
                       c. Both the metre scale and the thread
                       d. Only a graph paper
               2       Describe the process to measure a curved line?                                2

               3       What are the advantages of estimation?                                        2

                       Estimation is the ability to guess the amount of anything, without actual  1
               4
                       measurement. (True/False)
                       It becomes difficult to measure the length of irregular shaped objects        1
               5
                       by placing a metre rod. (true/False)
                       Assertion: Estimation gives an approximate value of the quantity.             1
               6       Reason: The ability to guess the amount of anything without actual
                       measurement is called estimation.
                       Assertion: Its easy to measure the length of curved line by using a
                       thread and ruler.
               7
                       Reason: It is difficult to measure the length of irregular shaped objects
                       by placing a metre rod.
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