ICSE/ Physics/ Gr 9/ Measurements and Experimentation

Subject: Physics

Topic: Measurements and Experimentation

Marks: 40 

Question 1. 

Fill in the blanks.                                               (5)                                            

1. The SI unit of energy is..............

2. .............. Is the process of comparison of given physical quantity with the known standard quantity of the same nature.

3. The least count of screw gauge is ..........

4. The time period of oscillation is directly proportional to the .................. Of its effective length.

5.  The time period of oscillation does not depend on the .................. on either side

Question 2.

Name the following.                                          (5)

1. Two fundamental unit.

2. Two units bigger than metre

3. Two errors of vernier caliper.

4. One complete to and fro motion of simple pendulum.

5.  The maximum displacement of Bob from mean position on either side.

Question 3.                                                       (10)

Answer in one or two sentences

1. A unit in its short form is never written in plural.

2.  Explain with suitable calculation that power is a derive unit.

3. State the function of inside jaw of vernier caliper.

4. Write the use of Ratchet of screw gauge.

5. Explain with the help of graph how square of time period is directly proportional to the length.