Short Questions (120)
Easy Questions (30%)
1. What is temperature?
2. Define heat.
3. What is a thermometer used for?
4. Name a common type of thermometer.
5. What is the lower fixed point in a thermometer?
6. What is the upper fixed point in a thermometer?
7. How many types of temperature scales are there?
8. Name the three common temperature scales.
9. Define specific heat capacity.
10. What is the SI unit of specific heat capacity?
11. What is meant by heat capacity?
12. What is latent heat of fusion?
13. Define latent heat of vaporization.
14. What is evaporation?
15. Name two factors that affect the rate of evaporation.
16. What is thermal expansion?
17. Define linear thermal expansion.
18. What is volume thermal expansion?
19. What is a bimetal strip?
20. How is thermal expansion used in thermostats?
21. Why does water have a high specific heat capacity?
22. What happens when a liquid is heated?
23. What is the Celsius scale?
24. What is the boiling point of water in the Kelvin scale?
25. Define latent heat.
26. What is the formula to convert Celsius to Kelvin?
27. What is the boiling point of water in the Celsius scale?
28. What is the melting point of ice in the Fahrenheit scale?
29. Why does water expand when it freezes?
30. What is the importance of thermal expansion in railway tracks?
31. What is a solid glass thermometer?
32. How is temperature measured using a liquid thermometer?
33. Why do liquids expand more than solids when heated?
34. What happens to gases when they are heated?
35. What is the relationship between temperature and heat?
Moderate Questions (40%)
36. Explain the difference between temperature and heat.
37. Describe the working principle of a liquid-in-glass thermometer.
38. What is the significance of lower and upper fixed points in a thermometer?
39. How is temperature converted from Celsius to Fahrenheit?
40. Derive the formula for converting Fahrenheit to Celsius.
41. How is the Kelvin scale different from the Celsius scale?
42. What is meant by the specific heat capacity of a substance?
43. Describe the importance of water’s high specific heat capacity.
44. Define heat capacity and give its formula.
45. What is the difference between latent heat of fusion and latent heat of vaporization?
46. How does the surface area of a liquid affect its rate of evaporation?
47. Explain why wind increases the rate of evaporation.
48. Describe the nature of thermal expansion in liquids.
49. What is the significance of thermal expansion in everyday life?
50. How is thermal expansion used in construction?
51. Explain the concept of a bimetal strip.
52. How does a bimetal strip work in a thermostat?
53. Explain the concept of linear thermal expansion with an example.
54. What are the consequences of thermal expansion in solids?
55. How does thermal expansion affect bridges and buildings?
56. Describe the process of latent heat of fusion.
57. What happens to the temperature of a substance during the change of state?
58. How does evaporation cause cooling?
59. Explain why different liquids have different rates of evaporation.
60. How does atmospheric pressure affect the boiling point of a liquid?
61. What is thermal expansion and why does it occur?
62. Describe the factors affecting the rate of evaporation of a liquid.
63. How does thermal expansion vary between solids, liquids, and gases?
64. Why is the specific heat capacity of water important for marine life?
65. How is temperature measured using a thermocouple?
66. Explain the use of thermal expansion in the construction of thermostats.
67. How does thermal expansion of solids differ from that of liquids?
68. What is the effect of temperature on the density of liquids?
69. Why is the Kelvin scale used in scientific measurements?
70. Discuss the effect of temperature on the volume of gases.
71. How does thermal expansion affect metal pipes?
72. Explain the role of bimetal strips in heating appliances.
73. Why is latent heat of fusion required for melting?
74. Describe the factors that affect thermal expansion in solids.
75. How does the molecular structure of a substance affect its thermal expansion?
76. Why is the Kelvin scale considered absolute?
77. How does the specific heat capacity of a substance affect its heating?
78. Why do materials expand when heated?
79. How is thermal expansion controlled in engineering applications?
80. Explain why the temperature of a liquid remains constant during boiling.
81. Discuss the applications of thermal expansion in engineering.
82. What is the relationship between heat, temperature, and thermal expansion?
83. How does the kinetic theory explain thermal expansion?
84. What is the importance of thermal expansion in designing mechanical systems?
85. Describe how a bimetallic strip bends with a change in temperature.
86. How is the specific heat capacity of a substance measured?
87. Explain the use of specific heat capacity in calorimetry.
88. How does latent heat affect the state of matter?
89. Describe the concept of thermal equilibrium.
90. How is specific heat capacity used in calculating energy changes?
91. What are the effects of thermal expansion on road surfaces?
92. Discuss the importance of bimetallic strips in temperature regulation.
93. How does the specific heat capacity of a substance affect temperature change?
94. Explain the role of latent heat in the phase changes of water.
95. How does temperature affect the pressure of a gas?
96. Why is the Kelvin scale preferred over the Celsius scale in scientific research?
Tough Questions (30%)
97. Derive the formula for converting Kelvin to Celsius.
98. Explain how a bimetal strip works using the concept of thermal expansion.
99. Discuss the significance of specific heat capacity in designing heating systems.
100. Derive the formula for specific heat capacity.
101. How does thermal expansion explain the formation of cracks in heated materials?
102. Derive the formula for linear expansion in solids.
103. Explain why metals expand at different rates when heated.
104. How is latent heat used in the process of distillation?
105. Discuss the effect of thermal expansion on the structural stability of buildings.
106. How does thermal expansion relate to the molecular motion of particles?
107. Describe how thermal expansion is used in bimetallic temperature sensors.
108. Why do different materials have different specific heat capacities?
109. Explain the use of specific heat capacity in industrial applications.
110. Derive the relationship between heat energy and specific heat capacity.
111. Discuss the effect of thermal expansion on liquid-filled thermometers.
112. Explain the role of specific heat capacity in climate regulation.
113. How is the concept of latent heat used in refrigeration systems?
114. Discuss how thermal expansion is controlled in modern engineering.
115. Explain why thermal expansion can cause structural damage in bridges.
116. Derive the equation for the total heat energy change in a substance.
117. How does the nature of a liquid affect its rate of evaporation?
118. Discuss the role of specific heat capacity in temperature regulation of ecosystems.
119. Explain how thermal expansion can affect the functioning of mechanical systems.
120. Discuss the application of thermal expansion in the manufacturing industry.
Long Questions (10)
Easy Questions (3)
1. Define heat and temperature. Explain the difference between the two with examples. Discuss the units used to measure heat and temperature.
2. Explain the concept of latent heat of fusion and latent heat of vaporization. Discuss the importance of latent heat in phase changes with examples.
3. What is thermal expansion? Explain the three types of thermal expansion (linear, volume, and area) and give examples for each type.
Moderate Questions (4)
4. Describe the different scales of temperature (Celsius, Kelvin, and Fahrenheit). Explain how to convert temperature from one scale to another with examples.
5. Discuss the concept of specific heat capacity. Explain its importance in everyday life and provide examples of how it is applied in various situations.
6. What is thermal expansion of solids? Derive the formula for linear thermal expansion and discuss its applications in engineering.
7. Explain the relationship between temperature, heat, and thermal expansion. Discuss how this relationship is applied in the design of various household and industrial devices.
Tough Questions (3)
8. Derive the formula for specific heat capacity. Explain how it is used to calculate the energy required to change the temperature of a substance.
9. Discuss the concept of thermal equilibrium. Explain how it is achieved and its significance in various thermodynamic processes.
10. Explain the principles of thermal expansion in gases. Discuss how it affects the behavior of gases under different conditions using the ideal gas law.