Physics and Chemistry Fundamentals

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Questions and Answers

What is the branch of physics that deals with the study of heat, temperature, and energy transfer?

  • Optics
  • Thermodynamics (correct)
  • Mechanics
  • Electromagnetism

What is the period of the periodic table based on?

  • Molecular structure
  • Chemical bonding
  • Atomic number (correct)
  • Atomic mass

What is the study of the arrangement of particles in an atom called?

  • Chemical bonding
  • Molecular structure
  • Atomic structure (correct)
  • Thermodynamics

What is the branch of mathematics that deals with the study of limits and derivatives?

<p>Calculus (D)</p> Signup and view all the answers

What is the branch of chemistry that deals with the study of the composition, properties, and reactions of matter?

<p>Physical Chemistry (B)</p> Signup and view all the answers

What is the study of the properties and behavior of hydrogen and its compounds called?

<p>Hydrogen (B)</p> Signup and view all the answers

What is the branch of electromagnetism that deals with the study of electrostatic charges and their interactions?

<p>Electrostatics (A)</p> Signup and view all the answers

What is the term used to describe the force that develops in a body when it is subjected to a deforming force?

<p>Restoring force (B)</p> Signup and view all the answers

What is the unit of stress in the SI system?

<p>Pa (D)</p> Signup and view all the answers

What type of stress occurs when a cylinder is stretched by two equal forces applied normal to its cross-sectional area?

<p>Tensile stress (C)</p> Signup and view all the answers

What is the term used to describe the change in length of a body when an external force acts on it?

<p>Longitudinal strain (B)</p> Signup and view all the answers

What is the formula to calculate the magnitude of stress?

<p>F / A (D)</p> Signup and view all the answers

What is the characteristic of a solid that allows it to regain its original shape and size when an external force is removed?

<p>Elasticity (C)</p> Signup and view all the answers

What type of deformation occurs when a solid body returns to its original shape and size after an external force is removed?

<p>Elastic deformation (D)</p> Signup and view all the answers

What is the term for a solid body that has a definite shape and size, but is not perfectly rigid?

<p>Solid body (D)</p> Signup and view all the answers

What is the property of a material that allows it to be permanently deformed when an external force is applied?

<p>Plasticity (B)</p> Signup and view all the answers

Why is the study of elasticity important in engineering design?

<p>Because it helps in predicting the behavior of materials under stress (D)</p> Signup and view all the answers

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