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Scalar & Vector Quantities

Scalar & Vector Quantities. Physics Seo. What is a Vector?. L ength from one point to another H olds BOTH Magnitude (aka. Size) AND Direction Some Examples: velocity displacement acceleration force. What is a Scalar?. Amount or size of quantity H olds only Magnitude (aka. Size)

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Scalar & Vector Quantities

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  1. Scalar & Vector Quantities Physics Seo

  2. What is a Vector? • Length from one point to another • Holds BOTH Magnitude (aka. Size) AND Direction • Some Examples: • velocity • displacement • acceleration • force

  3. What is a Scalar? • Amount or size of quantity • Holds only Magnitude (aka. Size) • Some Examples: • speed • distance • mass • energy • power

  4. Distance vs. Displacement Physics Seo

  5. Distance • How far something is • Measured in terms of meters (m) • In physics, symbol is • For Example: • Josh ran 10 meters

  6. Displacement • Distance in a specific direction • Δ= change in distance ; Δ (“Change in”) • Δ = xf • Can also be positive or negative • Position vs. time graph (x vs t graph) • Units • meters or • Example: • Josh ran 10 meters to the East

  7. Practice • 1) James hiked 30 meters • ANS: Distance • 2) Thomas walked 80 meters backwards • ANS: Displacement • 3) Christine left the house and walked 10 meters • ANS: Distance

  8. Speed vs. Velocity Physics Seo

  9. Speed • How fast an object is traveling • Represented as • Example: • Josh rushed to his house at a speed of 80 mph

  10. Velocity • How fast an object is traveling in a specific direction • Variable • = • Units • Example: • Josh rushed to his house at a speed of 80 mph East

  11. Average Speed, Average Velocity • Object’s fastness or slownessequation: • Average velocity also has direction

  12. Acceleration Physics Seo

  13. Acceleration • How fast over a period of given time • V • Units

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