Physics Basics

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Questions and Answers

What does physics deal with according to the text?

  • Motion, forces, heat, sound, light, electricity, magnetism, and atoms' composition (correct)
  • Light and electricity only
  • Heat and magnetism only
  • Motion and forces only

Which branch of science is considered the basic science?

  • Physics (correct)
  • Biology
  • Geology
  • Chemistry

What is the interrelationship discussed in biophysics according to the text?

  • Chemistry and physics
  • Biology and geology
  • Geology and chemistry
  • Physics and biology (correct)

Which field is concerned with how matter is put together according to the text?

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

What is the process of expressing size or quantity into a known standard unit called?

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

Where is physics applied according to the text?

<p>In home, transportation, communication, amusement, sports, and industry (D)</p> Signup and view all the answers

Which type of units can be measured directly using instruments?

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

What is the main characteristic of a scalar quantity?

<p>It has magnitude only (A)</p> Signup and view all the answers

How are vector quantities usually represented?

<p>With an arrow symbol and scale factor (D)</p> Signup and view all the answers

What is the standard unit of length in the SI system?

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

Which physical quantity is measured using units like yard, feet, inches, and miles?

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

What does mass represent?

<p>Resistance to acceleration by a body (A)</p> Signup and view all the answers

What is the standard unit for time?

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

Which formula can be used to calculate the volume of a sphere?

<p>$V = 4/3 \pi r^3$ (B)</p> Signup and view all the answers

What is the SI unit for density?

<p>Kilogram per cubic meter (B)</p> Signup and view all the answers

Which physical quantity is weight measured in?

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

What does the specific heat of a substance represent?

<p>The heat capacity of a substance (D)</p> Signup and view all the answers

What can be used to measure the volume of irregular-shaped solids?

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

What is the SI unit of temperature?

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

Which unit is equivalent to joule for measuring energy?

<p>Foot-pound (A)</p> Signup and view all the answers

What is the triple point temperature used to define?

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

Which one of the following is NOT a famous mechanical energy?

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

What is the unit for expressing force?

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

In converting units, what must be known along with the conversion factor and desired unit?

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

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