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9th Grade > Physics

WORK AND ENERGY MCQs

Total Questions : 131 | Page 7 of 14 pages
Question 61. The burning of coal, wood or natural gas and releasing of heat and light energy in the air is a
  1.    nuclear reaction
  2.    kinetic reaction
  3.    chemical reaction
  4.    potential reaction
 Discuss Question
Answer: Option C. -> chemical reaction
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 62. One horsepower is equal to
  1.    790 watts
  2.    700 watts
  3.    720 watts
  4.    746 watts
 Discuss Question
Answer: Option D. -> 746 watts
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 63. The energy possessed by a body both due to its motion or position is termed as
  1.    heat energy
  2.    chemical energy
  3.    mechanical energy
  4.    electrical energy
 Discuss Question
Answer: Option C. -> mechanical energy
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 64. The energy possessed by a body due to its motion is called its
  1.    potential energy
  2.    kinetic energy
  3.    heat energy
  4.    chemical energy
 Discuss Question
Answer: Option B. -> kinetic energy
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 65. Electrical energy can be easily supplied to any desired place through
  1.    water
  2.    pipes
  3.    signals
  4.    wires
 Discuss Question
Answer: Option D. -> wires
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 66. Fission and fusion are called
  1.    molecular reactions
  2.    potential reactions
  3.    nuclear reactions
  4.    heat reactions
 Discuss Question
Answer: Option C. -> nuclear reactions
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 67. Fossil fuels are burnt to produce electricity in
  1.    thermal power
  2.    chemical power
  3.    nuclear power
  4.    solar cars
 Discuss Question
Answer: Option A. -> thermal power
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 68. Which of the following converts light energy into electrical energy?
  1.    photocell
  2.    electrical generator
  3.    electric cell
  4.    electric bulb
 Discuss Question
Answer: Option A. -> photocell
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 69. Fossil fuels are
  1.    non renewable energy sources
  2.    renewable energy sources
  3.    reliable
  4.    non reliable
 Discuss Question
Answer: Option A. -> non renewable energy sources
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 70. A stretched bow contains
  1.    heat energy
  2.    potential energy
  3.    kinetic energy
  4.    mechanical energy
 Discuss Question
Answer: Option D. -> mechanical energy
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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