Physics Practice: Measurements & Experimentation (Mock Test 5 - Ultimate Mastery)
1. Which of the following is NOT an S.I. base unit?
2. The least count of a Vernier Callipers is $0.01\text{ cm}$. If the 4th vernier division coincides with a main scale division, the vernier reading is:
3. One Light Year is a unit of ________.
4. The distance moved by the screw of a screw gauge along its axis in one complete rotation is its ________.
5. The graph of $T^2$ versus $l$ for a simple pendulum is a straight line. This proves that ________.
6. While measuring depth, which part of the Vernier Callipers is extended into the beaker?
7. A measurement of $0.005080\text{ m}$ has how many significant figures?
8. If the length of a simple pendulum is made four times, its time period becomes ________.
9. $1\text{ nanometre (nm)}$ is equal to ________ metres.
10. To avoid parallax error, the eye must be positioned ________ the mark being read.
11. A "Seconds Pendulum" has a time period of ________ seconds.
12. The error caused by wear and tear of threads in a screw gauge is ________ error.
13. The diameter of a thin wire is measured using ________.
14. $1\text{ Angstrom }(\text{\AA})$ is equal to ________ centimetres.
15. The constant of proportionality in the formula $T = 2\pi\sqrt{l/g}$ is ________.
16. To measure the internal diameter of a test tube, we use ________ of the Vernier Callipers.
17. $1\text{ metric tonne}$ is equal to ________ quintals.
18. If a clock runs slow in summer, it is because the ________ of the pendulum ________.
19. Which prefix represents $10^{-12}$?
20. The least count of a screw gauge is $0.01\text{ mm}$ and its pitch is $1\text{ mm}$. The number of divisions on its circular scale is ________.