Web31 aug. 2024 · MCQ Questions for Class 9 Science: Ch 11 Work and Energy. 1. Work done by centripetal force is. 2. When a body falls freely towards the earth, then its total energy. 3. If work is done at a faster rate, then. 4. Moon revolves around the earth due to gravitational force (F) of earth on moon. WebThe gravitational potential energy of an object is due to. (a) its mass. (b) its acceleration due to gravity. (c) its height above the earth s surface. (d) all of the above. 5. A ball is dropped from a height of 10 m. (a) Its potential energy increases and kinetic energy decreases during the falls. (b) Its potential energy is equal to the ...
NCERT Solutions for Class 11 Physics Chapter 6 - Work, Energy
Web9 feb. 2024 · Ans2. (a) The potential energy is converted into the work done. Thus is the block moves from the height h to the ground, the work done is given by Negative because the work is done is in the opposite direction of the motion of the body. (b) The requirement of the third law is important in the equilibrium of the body. Web6 apr. 2024 · Refer to the Force and Pressure Class 8 MCQs Questions with Answers here along with a detailed explanation. Force and Pressure Class 8 MCQs Questions with Answers. Choose the correct option. Question 1. The pressure which is exerted by air around us is known as (a) force (b) atmospheric pressure (c) muscular force (d) friction. … lavon jacket
Work, Energy and Power MCQ for NEET 2024 - BYJU
Web13 aug. 2024 · Answer 3. (a) When force is at an angle to the direction of displacement, then work done, W= F S cos. (b) (i)For zero work done, the angle between force and displacement should be 90 o as cos 90 o =0. W =FScos90 o = FSx0=0. (ii)For maximum work done, the angle between force and displacement should be 0 o as cos0 o =1. WebNext ». This set of Physics Multiple Choice Questions & Answers (MCQs) focuses on “Introduction to Work, Energy and Power”. 1. The energy possessed by a body by the virtue of its motion is called ______. a) … Web6 apr. 2024 · NCERT Class 5 EVS Solved Worksheets. Chapter 1 – Plants and animals. Chapter 2 – Human Body and Health. Chapter 3 – Natural Resources. Chapter 4 – Air Water Weather. Chapter 5 – Light and … lavon lake marina