Calculating Speed: Distance and Time Relationship

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Questions and Answers

What is the formula to calculate speed?

  • Time + Distance
  • Time / Distance
  • Distance / Time (correct)
  • Distance x Time

If Clara took 200 seconds to run 800 meters instead of 260 seconds, what impact would it have on her speed?

  • Her speed would decrease
  • Her speed would become zero
  • Her speed would remain the same
  • Her speed would increase (correct)

How can you tell from a speed vs. time graph if an object is accelerating?

  • The slope of the line is zero
  • The slope of the line is positive (correct)
  • The graph is a straight line
  • The slope of the line is negative

What does a negative acceleration represent on a speed vs. time graph?

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

If Clara's speed vs. time graph is a straight, horizontal line, what can be said about her motion?

<p>She is moving at a constant speed (B)</p> Signup and view all the answers

What does a positive slope on a speed vs. time graph indicate?

<p>The object is accelerating. (C)</p> Signup and view all the answers

How is acceleration represented on a speed vs. time graph?

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

If a line on a speed vs. time graph is steep, what does it indicate?

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

What does a negative slope on a speed vs. time graph signify?

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

How can you tell if an object has a larger acceleration from a speed vs. time graph?

<p>The line is steeper. (A)</p> Signup and view all the answers

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