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CBSE Class 11 (Science) Mechanical Properties of Solids and Fluids — practice questions — page 4

Explore 257 free Mechanical Properties of Solids and Fluids questions in CBSE Class 11 (Science) Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Mechanical Properties of Solids and Fluids questions and exercises with answers

Showing questions 91–120 of 257.

A pressure equal to one millimetre of mercury is called a:Read the answer and worked solution →Pressure applied to an enclosed fluid is transmitted:Read the answer and worked solution →Pascal's law says the transmitted pressure acts in directions that are:Read the answer and worked solution →Which device is based on Pascal's law?Read the answer and worked solution →Brakes in automobiles that work on Pascal's law are called:Read the answer and worked solution →The rule about the upthrust on an immersed body is credited to:Read the answer and worked solution →Archimedes was a philosopher and engineer from:Read the answer and worked solution →Pressure above atmospheric at a given depth is called:Read the answer and worked solution →The path taken by a fluid particle in steady flow is a:Read the answer and worked solution →Steady flow is achieved when the flow speed is:Read the answer and worked solution →Bernoulli's principle is derived using the conservation of:Read the answer and worked solution →Daniel Bernoulli was a physicist from:Read the answer and worked solution →The word efflux, as used for fluids, means:Read the answer and worked solution →True or false on fluidsRead the answer and worked solution →Quick picks on fluidsRead the answer and worked solution →Match each name to the workRead the answer and worked solution →Pascal or ArchimedesRead the answer and worked solution →Steady flow or notRead the answer and worked solution →Type the numberRead the answer and worked solution →Fill the gaps on fluidsRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →You stretch a spring gently and let go. It returns to its old length. This property is:Read the answer and worked solution →You press a lump of putty and it keeps the new shape. Putty is close to an ideal:Read the answer and worked solution →A steel bar looks perfectly rigid. Can a large enough force still deform it?Read the answer and worked solution →Hooke found that the elongation of a body is proportional to the:Read the answer and worked solution →The restoring force per unit area inside a deformed body is called:Read the answer and worked solution →You stretch a cylinder by pulling both ends. The stress in it is called:Read the answer and worked solution →You press a thick book down and push its top sideways. The book is under:Read the answer and worked solution →A solid ball sits deep in a fluid under high pressure. Its volume shrinks but its shape:Read the answer and worked solution →Strain is a ratio of two lengths, so its unit is:Read the answer and worked solution →

Worked practice questions

A pressure equal to one millimetre of mercury is called a:

  1. Pasc
  2. Bern
  3. Arch
  4. Torr
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Correct answer: D. Torr

1. Pressures are often quoted in millimetres of mercury. 2. That small unit is named after a scientist. 3. It is called the torr, after Torricelli. _Source: syllabus Physics Part II, Chapter 10, Mechanical Properties of Fluids._

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Pressure applied to an enclosed fluid is transmitted:

  1. Undiminished
  2. Half as much
  3. Only downward
  4. Only upward
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Correct answer: A. Undiminished

1. The applied pressure reaches every part of the fluid. 2. It weakens nowhere along the way. 3. So it is transmitted undiminished and equally in all directions. _Source: syllabus Physics Part II, Chapter 10, Mechanical Properties of Fluids._

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Pascal's law says the transmitted pressure acts in directions that are:

  1. None of them
  2. All of them
  3. One of them
  4. Two of them
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Correct answer: B. All of them

1. The fluid carries the applied pressure throughout the vessel. 2. No direction is favoured over another. 3. So it acts equally in all directions. _Source: syllabus Physics Part II, Chapter 10, Mechanical Properties of Fluids._

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