This is a combined __quiz__ that will be looking at many different aspects of __Physics__ to be precise. In this quiz, we will talk about Physical quantities which we measure with the use of units and Dimensions. This quiz will help you understand things like distance being a physical quantity( a fundamental one at that) and how it is measured and its unit of measurement. It is therefore important for you to take this quiz seriously as you may be tested in school or during examinations practically and not just theoretically.

A Physical quantity is simply a physical property that can be quantified or measured. These quantities are measured using numbers or figures which all end with units and these units in simple words mean the magnitude of a quantity. For example, we have time to be a physical quantity, with units of seconds (s), measured using a stopwatch or simply watch.

The dimension of a physical quantity is defined as the number of times the fundamental units of mass, length, and time appear in the physical quantity.

This particular topic(s) in physics is very useful in all fields as concerns engineering and life as a whole, so be sure to take the quiz, for you will find it very educational and worth it.

Good luck!

4:

*On the basis of dimensional equation, the maximum number of unknown that can be found, is*

6:

*If v stands for velocity of sound, E is elasticity and d the density, then find x in the equation v = (d/E)^x*

8:

*The multiplication of 10.610 with 0.210 upto correct number of significant figure is*

9:

**There are 20 divisions in 4 cm of the main scale. The vernier scale has 10 divisions. The least count of the instrument is**

11:

What is the percentage error in the measurement of the kinetic energy of a body, if there is a positive error of 50% in the speed of the body

12:

*The measurement of radius of a circle has error of 1%. The error in measurement of its area is*

13:

Identify the physical parameters that are having the same dimensions from the below-given list:

(i) Magnetic field

(ii) Energy density

(iii) Refractive index

(iv) Young’s modulus

(v) Dielectric constant

15:

*Three measurements 7.1 J, 7.2 J and 6.7 J are made as experiment the result with correct number of significant figures is*

16:

divisions are the circular scale reading

What is the diameter of the wire if 1 mm on the main scale is equal to the 100 divisions on the circular scale