51. Without the atmosphere, the Earth's night temperature would fall to about
Answer: A. -180 °C
Physics Class 10 Unit 10: Heat Capacity and Modes of Heat Transfer MCQs
70 multiple choice questions with the correct answer for each. Tap an option to check yourself, or switch on "Show all answers". This is page 2 of 2.
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52. Which of the following is a greenhouse gas?
Answer: B. Methane
53. The enhanced greenhouse effect contributes to global warming by
Answer: A. trapping more heat in the atmosphere
54. The gradual increase in temperature of the Earth's atmosphere and oceans is called
Answer: B. global warming
55. Burning of fossil fuels increases
Answer: D. greenhouse gases in the atmosphere
56. Deforestation increases carbon dioxide because trees
Answer: C. absorb carbon dioxide
57. Rising sea levels increase the risk of
Answer: D. flooding of coastal areas
58. Increased evaporation due to global warming leads to
Answer: A. droughts in dry areas and heavier rainfall in wet areas
59. A heat wave is a period of abnormally hot weather lasting generally more than
Answer: C. two days
60. A prolonged dry period with deficiency of precipitation is called
Answer: B. drought
61. The temperature of the Earth's core is about
Answer: D. 6000 °C
62. The Earth's core is mainly composed of
Answer: B. iron and nickel
63. The layer between the core and the crust is the
Answer: A. mantle
64. Molten or partially molten rock beneath the Earth's crust is called
Answer: C. magma
65. The layer of the Earth composed of partially molten rock that can flow slowly is the
Answer: D. asthenosphere
66. In the mantle, heat is transferred mainly by
Answer: B. convection
67. The primary driving force behind the movement of tectonic plates is
Answer: C. mantle convection currents
68. Tectonic plates move at a rate of
Answer: A. a few centimetres per year
69. A factor that keeps the Earth's core hot is
Answer: C. radioactive decay of uranium, thorium and potassium
70. Gravitational compression keeps the core hot because it
Answer: A. increases pressure and temperature
About Physics Class 10 Unit 10 MCQs (Federal Board)
These 70 Physics MCQs cover Class 10 Unit 10: Heat Capacity and Modes of Heat Transfer of the Federal Board (FBISE) SSC-II (Class 10) syllabus. They are SLO-based MCQs as per the new pattern for FBISE exams. Each question has four options and the correct answer is shown, so you can practise for the annual examination and find the topics you still need to revise. The questions are split over 2 pages of 50. You can also read the Heat Capacity and Modes of Heat Transfer notes for this chapter. Download the Heat Capacity and Modes of Heat Transfer MCQs as a PDF using the button at the top of this page.