Physical Quantities and Measurement – Online MCQs Test – Physics 9th

1. Numbers in Scientific Notation are made up of:

2. 0.000 000 000 000 000 000 000 000 000 000 911 kg

3. What is the reading of this micrometer in the following figure?

4. The unit of luminous intensity is:

5. 1 m³ =

6. Use of every instrument is restricted by smallest measurement that it can perform which is called:

7. The following figure shows part of a Vernier scale, what is the reading on the Vernier scale?:

8. It studies the elementary constituents of matter and radiation, and the interaction between them.

9. Mole’ is a unit of:

10. If zero line of Vernier scale coincides with zero of main sale, then zero error is:

11. This branch of physics deals with heat and temperature and their relation to energy and work.

12. Volume of a cylinder =

13. Ten identical steel balls each of mass 27g, are immersed in a measuring cylinder having 20cm³ of water. The reading of water level rises to 50cm³. What is the density of the steel?

14. The density of Aluminum is 2.70 gm/cm³ which is equal to:

15. A chips wrapper is 4.5 cm long and 5.9cm wide. Its area upto significant figure will be:

16. 1000mg = :

17. Physics is the branch of science which observes the nature represents it mathematically and conclude with the:

18. 0 .00000034 has:

19. Zero mark on Vernier scale is slightly to the right than the zero error is called:

20. The numbers of reliably known digits in a value are known as: