Physics Symbols and Units I
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Questions and Answers

What symbol represents distance?

d

What symbol represents displacement?

Δx

What symbol represents a change in height?

Δh

What is the unit for distance or displacement?

<p>meter</p> Signup and view all the answers

What abbreviation is used for the unit of distance or displacement?

<p>m</p> Signup and view all the answers

What symbol represents speed or velocity?

<p>v</p> Signup and view all the answers

What are the units for speed or velocity?

<p>meters per second</p> Signup and view all the answers

What abbreviation is used for the units of speed or velocity?

<p>m/s</p> Signup and view all the answers

What symbol represents initial or starting speed?

<p>vi</p> Signup and view all the answers

What symbol represents final or ending speed?

<p>vf</p> Signup and view all the answers

What symbol represents changes in velocity?

<p>Δv</p> Signup and view all the answers

What symbol represents acceleration?

<p>a</p> Signup and view all the answers

What abbreviation is used for the units of acceleration?

<p>m/s²</p> Signup and view all the answers

What symbol represents a time interval?

<p>Δt</p> Signup and view all the answers

What is the unit for time?

<p>second</p> Signup and view all the answers

What abbreviation is used for the unit of time?

<p>s</p> Signup and view all the answers

What symbol represents force?

<p>F</p> Signup and view all the answers

What is the unit for force?

<p>newton</p> Signup and view all the answers

What abbreviation is used for the unit of force?

<p>N</p> Signup and view all the answers

The unit abbreviation N is a combination of what three simpler units?

<p>kg∙m/s²</p> Signup and view all the answers

What symbol represents mass?

<p>m</p> Signup and view all the answers

What is the unit of mass?

<p>kilogram</p> Signup and view all the answers

What abbreviation is used for the unit of mass?

<p>kg</p> Signup and view all the answers

What is the 'hidden given' if an object is in free fall or falling?

<p>a = g = -9.8 m/s²</p> Signup and view all the answers

What is the 'hidden given' if an object starts from rest?

<p>vi = 0 m/s</p> Signup and view all the answers

What are the two 'hidden givens' if an object is dropped?

<p>vi = 0 m/s &amp; a = g = -9.8 m/s²</p> Signup and view all the answers

What is the 'hidden given' if an object comes to a halt or stops?

<p>vf = 0 m/s</p> Signup and view all the answers

Study Notes

Symbols in Physics

  • Distance is represented by the symbol d.
  • Displacement is denoted as Δx.
  • A change in height is indicated by Δh.
  • The unit of measurement for both distance and displacement is the meter.
  • The abbreviation for meter is m.

Speed and Velocity

  • Speed or velocity is symbolized by v.
  • The units for speed or velocity are measured in meters per second.
  • The abbreviation for meters per second is m/s.
  • vi represents initial or starting speed.
  • vf symbolizes final or ending speed.
  • Changes in velocity are expressed as Δv.

Acceleration

  • Acceleration is indicated by the symbol a.
  • The unit of measurement for acceleration is meters per second squared (m/s²).
  • The abbreviation for meters per second squared is m/s².

Time

  • A time interval is represented by Δt.
  • The unit for measuring time is the second.
  • The abbreviation for second is s.

Force

  • Force is represented by the symbol F.
  • The unit for force is the newton.
  • The abbreviation for newton is N.
  • The unit abbreviation N is defined as a combination of simpler units: kg∙m/s².

Mass

  • Mass is denoted by the symbol m.
  • The unit of mass is the kilogram.
  • The abbreviation for kilogram is kg.

Hidden Givens

  • For an object in free fall, the hidden given is a = g = -9.8 m/s².
  • If an object starts from rest, the hidden given is vi = 0 m/s.
  • When an object is dropped, the two hidden givens are vi = 0 m/s and a = g = -9.8 m/s².
  • When an object comes to a stop, the hidden given is vf = 0 m/s.

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Test your knowledge on the symbols and units related to distance, speed, acceleration, and force with these flashcards. This quiz covers essential concepts in physics that are foundational for understanding motion and changes in position.

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