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The energy of motion
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<font face="Verdana, Arial, Helvetica, sans-serif" size="5" color="#FFFFFF"><strong> Atoms and Conservation of Energy:</strong> The energy of motion</font>
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<td><img src="atomMainIdea.png" width="98" height="58"></td>
<td><font face="Verdana, Arial, Helvetica, sans-serif" size="4">The <b>kinetic energy </b> of an object is the energy it possesses due to its motion. The faster an object moves, the higher kinetic energy it has (see <a href="script:page:0:message <t><font face=Verdana>The kinetic energy of an object with mass <i>m</i>, moving with speed <i>v</i>,<br>is defined as:<br> <center><i>E=mv<sup>2</sup>/2</i></center></font></t>;">the formula</a>).</b></font></td>
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The amount of kinetic energy an object has equals the amount of work it
can do by exerting a force on another object. For example, in the
experiment on the right, we will try to knock a heavy ball (right) off a
table using a light ball (left).<br><br><b>What you need to do:</b>
<ul>
<li>
Set the speed of the gray ball by adjusting the slider.
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<li>
Click run.
</li>
<li>
Click reset and try different speeds.
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<strong><font size="4" face="Arial, Helvetica, sans-serif">The faster the
ball on the left moved the kinetic energy of the ball....</font></strong>
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<strong><font size="4" face="Arial, Helvetica, sans-serif">The kinetic
energy is related to both an object's speed and its mass. Predict what
would happen if the ball on the left were twice its current mass.</font></strong>
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