Short Questions (120)
Easy Questions (30%)
1. What is physics?
2. Define physical quantities.
3. What are base quantities? Give two examples.
4. What are derived quantities? Give one example.
5. What does the International System of Units (SI) refer to?
6. Name any two base quantities along with their SI units.
7. Write the SI unit of mass and its symbol.
8. Write the SI unit of time and its symbol.
9. What does the prefix "kilo" represent?
10. Convert 5 kilometers into meters.
11. Define scientific notation.
12. What is the use of a measuring tape?
13. What is the function of Vernier calipers?
14. Define zero error in measuring instruments.
15. What is a screw gauge used for?
16. What is a physical balance?
17. What is an electronic balance used for?
18. What is the function of a stopwatch?
19. What is the SI unit of temperature?
20. What is the SI unit of length and its symbol?
21. How many base quantities are there in the SI system?
22. What is the purpose of a measuring cylinder?
23. How do you find the volume of a solid using a measuring cylinder?
24. How is zero correction applied to Vernier calipers?
25. What is the least count of a Vernier caliper?
26. Define significant figures.
27. What does the prefix "milli" mean?
28. Convert 2000 millimeters into meters.
29. What is the main use of a lever balance?
30. What is the function of an electronic balance?
Moderate Questions (40%)
31. What is the difference between base and derived quantities?
32. What is the SI unit of electric current? Write its symbol.
33. How do you take a reading on Vernier calipers?
34. What is the difference between zero error and zero correction?
35. Describe how zero error is identified in Vernier calipers.
36. Write the formula for calculating the volume of a regular-shaped solid.
37. How is the volume of an irregular solid determined using a measuring cylinder?
38. Describe the function of a screw gauge in measuring small dimensions.
39. Explain the use of scientific notation in representing large and small numbers.
40. How is the diameter of a wire measured using a screw gauge?
41. What is a physical balance? How does it work?
42. How is a lever balance different from a physical balance?
43. What is the importance of significant figures in measurements?
44. Describe how to use a stopwatch accurately.
45. Explain the role of a measuring tape in measuring distances.
46. Convert 0.00035 into scientific notation.
47. Write the SI unit of area and its symbol.
48. Define prefixes used in the SI system. Give two examples.
49. What is the least count of a screw gauge?
50. Describe how to calculate zero correction for a screw gauge.
51. How many significant figures are in the number 0.00450?
52. Write the SI unit of force and its symbol.
53. What are measuring instruments? Give two examples.
54. Why do we need measuring instruments in physics?
55. What precautions should be taken while using Vernier calipers?
56. Explain how to measure small thicknesses using a screw gauge.
57. Write the SI unit of pressure and its symbol.
58. Write the SI unit of volume and its symbol.
59. Explain the term "derived unit" with one example.
60. What is zero error in a screw gauge? How can it be corrected?
61. Describe how to measure the mass of an object using an electronic balance.
62. Explain how to determine the volume of a liquid using a measuring cylinder.
63. How do you ensure accurate readings using a stopwatch?
64. Write the SI unit of speed and its symbol.
65. What are the main components of Vernier calipers?
66. Explain the difference between prefixes "micro" and "nano".
67. Write the symbol for the prefix "centi".
68. How is the radius of a sphere measured using Vernier calipers?
69. Write the SI unit of frequency and its symbol.
70. Explain the use of significant figures in reporting scientific measurements.
71. How is zero error detected in a screw gauge?
72. What is the SI unit of energy? Write its symbol.
73. Define systematic error and random error.
74. What is the formula for calculating zero correction in a screw gauge?
75. Describe the working principle of a lever balance.
76. Write 0.0000056 in scientific notation.
77. Explain how to measure the volume of an irregular-shaped object using water displacement.
78. Write the SI unit of power and its symbol.
79. What is the main use of a measuring cylinder?
80. Describe the relationship between base and derived units in the SI system.
Tough Questions (30%)
81. Define accuracy and precision. Explain their importance in measurements.
82. What is the difference between systematic error and random error?
83. Write the rules for rounding off significant figures with two examples.
84. Explain how to calculate the volume of a stone using a measuring cylinder.
85. Describe the working principle of a physical balance.
86. What are the factors affecting the precision of measurements?
87. What is the difference between base quantities and fundamental quantities?
88. Explain how zero correction is applied in Vernier calipers.
89. How is the least count of a screw gauge determined?
90. Explain the significance of using SI units in scientific measurements.
91. Describe the relationship between accuracy and uncertainty in measurements.
92. How is zero error corrected in a screw gauge?
93. Describe the procedure for measuring the volume of a liquid using a measuring cylinder.
94. Write the scientific notation of 0.0000756 and explain the process.
95. Explain how to measure the thickness of a book using Vernier calipers.
96. Describe the use of a lever balance in measuring heavy masses.
97. Write the formula for calculating the least count of Vernier calipers.
98. Describe the method of using a stopwatch to measure short time intervals.
99. How does zero error affect the final reading of an instrument?
100. What is the role of significant figures in reporting measurement data?
101. Why is it important to minimize zero error in measurements?
102. How do you calibrate a measuring instrument for accurate readings?
103. Explain the working principle of an electronic balance.
104. Write the SI unit of density and its symbol.
105. Explain how to measure the volume of a cube using a measuring tape.
106. Describe how to use a stopwatch to measure the time of a falling object.
107. What are the limitations of using a physical balance for measuring mass?
108. Write the SI unit of magnetic field strength and its symbol.
109. How is zero error calculated for a screw gauge?
110. Explain the significance of using prefixes in the SI system.
111. Describe the working of a Vernier scale in Vernier calipers.
112. How is the volume of a liquid calculated using a measuring cylinder?
113. What precautions should be taken while measuring the mass using an electronic balance?
114. Why is scientific notation used in physics?
115. Describe how to find the volume of a cylindrical object using Vernier calipers.
116. What are the limitations of a screw gauge in measuring small dimensions?
117. Explain how to use a measuring cylinder to measure the volume of an irregular solid.
118. Describe how to convert a number into scientific notation.
119. Explain the working principle of a stopwatch in measuring time.
120. How is the least count of a measuring instrument calculated?
Long Questions (10)
Easy Questions (30%)
1. Define physical quantities, base quantities, and derived quantities with suitable examples.
- Explain what physical quantities are. Describe base and derived quantities with at least three examples of each, mentioning their SI units and symbols.
2. Describe the use and working of Vernier calipers.
- Explain the parts of a Vernier caliper and the step-by-step procedure for taking accurate readings using it, including handling zero error.
3. Explain the process of measuring the volume of an irregular-shaped object using a measuring cylinder.
- Discuss the water displacement method and describe how to use a measuring cylinder to determine the volume of an irregular solid.
Moderate Questions (40%)
4. Discuss the differences between base and derived quantities in detail.
- Define base and derived quantities, and discuss the differences with the help of at least five examples of derived quantities and their corresponding base quantities.
5. Explain the working principle of a screw gauge and describe how to use it to measure small dimensions.
- Describe the structure, principle, and working of a screw gauge. Discuss how to take a reading and apply zero correction to obtain an accurate measurement.
6. What are significant figures? Discuss their rules and explain how they are used in reporting measurements.
- Define significant figures and explain the rules for determining significant figures in a given measurement. Provide examples to illustrate these rules.
7. Describe the concept of prefixes in the SI system with suitable examples.
- Define prefixes and explain their use in simplifying large or small numbers. Provide at least five examples of commonly used prefixes and their respective values.
Tough Questions (30%)
8. Describe the difference between accuracy and precision with examples. Why are they important in scientific measurements?
- Define accuracy and precision. Discuss their differences with examples and explain why both are important in scientific measurements.
9. Explain the concept of zero error and zero correction in detail.
- Define zero error and zero correction. Discuss their causes, effects, and how they are detected and corrected in measuring instruments like Vernier calipers and screw gauges.
10. Discuss the importance of the International System of Units (SI) in scientific measurements.
- Explain the role of SI units in standardizing measurements across the world. Discuss how the use of SI units facilitates communication and comparison of science.