NEET TEST

1. Physics is a quantitative science based on the measurement of physical quantities. Which of the following is NOT a fundamental or base quantity?

   a) Length

   b) Time

   c) Temperature

   d) Velocity

2. The unit used to define a base quantity is called a:

   a) Fundamental unit

   b) Derived unit

   c) Standard unit

   d) Base unit

3. A complete set of units, including both fundamental and derived units, is called:

   a) Measuring system

   b) Metric system

   c) System of units

   d) Standard system

4. Which unit system is currently internationally accepted and widely used throughout the world?

   a) Imperial System

   b) Metric System

   c) International System of Units (SI)

   d) Customary System

5. Derived units are expressed as a combination of base units. Which of the following is a derived unit?

   a) Meter

   b) Kilogram

   c) Joule

   d) Second

6. SI units have well-defined and internationally accepted:

   a) Abbreviations

   b) Symbols

   c) Codes

   d) Names

7. Scientific notation and prefixes are used to simplify measurement notation and numerical computation. Which of the following is an example of scientific notation?

   a) 10,000

   b) 1.25 x 10^3

   c) 2000

   d) 0.0025

8. Rules and guidelines must be followed for using notations for physical quantities and standard symbols for SI units. Which of the following is NOT an SI unit symbol?

   a) m

   b) kg

   c) F

   d) A

9. When computing any physical quantity, how are the units for derived quantities involved in the relationship treated?

   a) As algebraic constants

   b) As irrelevant information

   c) As dimensional constants

   d) As algebraic quantities

10. Which of the following should be retained in measured and computed quantities?

    a) All digits after the decimal point

    b) Only the first digit after the decimal point

    c) Proper significant figures

    d) Only the last digit after the decimal point

11. What can be deduced using dimensional analysis?

    a) The exact value of a physical quantity

    b) Relations among physical quantities

    c) The accuracy of measurements

    d) The color of an object

12. The number of base quantities chosen as fundamental units in the SI system is:

    a) 5

    b) 6

    c) 7

    d) 8

13. Which unit is used to measure electric current?

    a) Kelvin

    b) Ampere

    c) Candela

    d) Mole

14. The derived unit "joule" is used to measure:

    a) Mass

    b) Time

    c) Energy

    d) Temperature

15. Which of the following is NOT a base unit in the SI system?

    a) Kelvin

    b) Second

    c) Meter

    d) Kilogram

16. What is the abbreviation for the unit "candela"?

    a) cd

    b) lm

    c) N

    d) K

17. Which system of units is commonly used in the United States?

    a) Metric System

    b) Imperial System

    c) International System of Units (SI)

    d) Customary System

18. The SI unit "kelvin" is used to measure:

    a) Time

    b) Temperature

    c) Mass

    d) Length

19. When expressing large quantities, scientific notation helps to:

    a) Increase precision

    b) Simplify measurement notation

    c) Round off uncertain digits

    d) Convert to metric units

20. A dimensionally consistent equation:

    a) Must be correct and exact

    b) May or may not be correct and exact

    c) Is always incorrect

    d) Is irrelevant for physics calculations