Files

<pl-question-panel>
  <p>An object's motion is described by the position-time graph below.</p>

  <pl-figure file-name="graph.png"></pl-figure>
</pl-question-panel>

<pl-question-panel><hr></pl-question-panel>

<p>1. <pl-question-panel>Select all regions where the object's velocity is primarily positive.</pl-question-panel></p>
<pl-checkbox answers-name="vpos" weight="1" display="inline">
  <pl-answer correct="true">A-B</pl-answer>
  <pl-answer correct="true">B-C</pl-answer>
  <pl-answer>               C-D</pl-answer>
  <pl-answer correct="true">D-E</pl-answer>
  <pl-answer>               E-F</pl-answer>
  <pl-answer>               F-G</pl-answer>
</pl-checkbox>

<pl-question-panel><hr></pl-question-panel>

<p>2. <pl-question-panel>At point <b>E</b>, the object's acceleration is:</pl-question-panel></p>
<pl-multiple-choice answers-name="acc" weight="1" display="inline">
  <pl-answer correct="false">positive</pl-answer>
  <pl-answer correct="true">negative</pl-answer>
  <pl-answer correct="false">zero</pl-answer>
</pl-multiple-choice>

<pl-question-panel><hr></pl-question-panel>

<p>3. <pl-question-panel>At point <b>F</b>, the object is:</pl-question-panel></p>
<pl-multiple-choice answers-name="speed_change" weight="1">
  <pl-answer correct="true">speeding “up”</pl-answer>
  <pl-answer correct="false">slowing down</pl-answer>
  <pl-answer correct="false">neither speeding up nor slowing down</pl-answer>
</pl-multiple-choice>

<pl-question-panel><hr></pl-question-panel>

<p>4. <pl-question-panel>What is the average velocity of the object during the time interval from $t = 0\rm\ s$ to $t = 5\rm\ s$?</pl-question-panel></p>
<pl-number-input answers-name="v_avg" label="$v_{\rm avg} = $" suffix="$\rm\ m/s$" correct-answer="0.8" comparison="sigfig" digits="2" weight="1"></pl-number-input>

<pl-question-panel><hr></pl-question-panel>

<p>5. <pl-question-panel>How do the velocities of the object at points <b>B</b> and <b>C</b> compare?</pl-question-panel></p>
<pl-multiple-choice answers-name="v_comp" weight="1" display="inline">
  <pl-answer correct="true">$v(B) &gt; v(C)$</pl-answer>
  <pl-answer correct="false">$v(B) = v(C)$</pl-answer>
  <pl-answer correct="false">$v(B) &lt; v(C)$</pl-answer>
</pl-multiple-choice>