Types of Speed - Science Flashcards

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Questions and Answers

What is the definition of acceleration?

  • When an object moves at a changing speed.
  • When the speed stays the same.
  • The speed of an object in a certain direction.
  • The change in final velocity divided by the time for change to take place. (correct)

What is velocity?

Speed of an object in a certain direction.

Constant speed means the speed changes over time.

False (B)

What is variable speed?

<p>When an object moves at a changing speed.</p> Signup and view all the answers

Average speed is the total distance covered divided by a given ______.

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

Instantaneous speed is when the speed of an object stays the same.

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

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Study Notes

Types of Speed

  • Acceleration:

    • Defined as the change in velocity over change in time.
    • Occurs during speeding up, slowing down, or changing direction.
  • Velocity:

    • Represents the speed of an object in a specific direction.
    • Essential in understanding motion in a directional context.
  • Constant Speed:

    • Describes a scenario where the speed does not change over time.
    • Indicates uniform motion without acceleration.
  • Variable Speed:

    • Refers to when an object's speed changes throughout its motion.
    • Common in real-life scenarios such as driving through traffic.
  • Average Speed:

    • Calculated by dividing the total distance traveled by the time taken for that travel.
    • Useful for summarizing overall motion over a journey.
  • Instantaneous Speed:

    • The speed of an object at a specific moment in time.
    • Important for understanding speed variations during a motion.

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