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      <title>Friction Science Inquiry by Sophie Mock</title>
      <link>https://padlet.com/s_mock/qprhx6n7kq2b</link>
      <description>Sophie Mock</description>
      <language>en-us</language>
      <pubDate>2019-02-07 19:19:51 UTC</pubDate>
      <lastBuildDate>2019-03-20 19:17:47 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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      <item>
         <title>Collecting and Presenting Data</title>
         <author>s_mock</author>
         <link>https://padlet.com/s_mock/qprhx6n7kq2b/wish/328934695</link>
         <description><![CDATA[<div>Link for data table: dhttps://docs.google.com/spreadsheets/d/1mH8yT9nPtzyKJYTEvAauAa6Kb4hHxRqyGWDMTDLsQVg/edit?usp=sharing<br><br>Observations: The control in this experiment was the surface the block was being dragged across, and the variable was the difference in masses of blocks. I observed that when the mass of the block changed the force required to move it was different. So each block required different amounts of force to move them. The blocks that had the most mass required more force. The more mass a block had the more force was required to move it. I also observed that the reading of the amount of force required was also affected by what angle you were holding the spring scale. To get a more accurate reading you would have to make sure you were holding the spring scale level and straight when pulling the blo. <br><br></div>]]></description>
         <enclosure url="" />
         <pubDate>2019-02-07 19:23:58 UTC</pubDate>
         <guid>https://padlet.com/s_mock/qprhx6n7kq2b/wish/328934695</guid>
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      <item>
         <title>Designing the investigation </title>
         <author>s_mock</author>
         <link>https://padlet.com/s_mock/qprhx6n7kq2b/wish/328935099</link>
         <description><![CDATA[<div>Materials:<br>- three wood blocks with different mass<br>- a spring scale<br>- a flat surface <br>- a pencil<br>- a piece of paper<br><br>Procedures:<br>write out your procedures here:<br>1) measure the mass of your wood block using the balance.<br>2) Measure the length, width, and height<br>3) record these findings so that you know which block you used.<br>4) Hook up the spring scale to the hook on the block<br>5) As  you watch the force reading on the spring scale, gently pull on the spring scale until the block begins to move.<br>6) Record the highest force reading the spring scale <br>7) repeat steps 3-5 again for accuracy <br>8)Repeat steps 1-7 but this time the variable, use a different size wood block<br>9) clean up your lab station </div>]]></description>
         <enclosure url="" />
         <pubDate>2019-02-07 19:24:41 UTC</pubDate>
         <guid>https://padlet.com/s_mock/qprhx6n7kq2b/wish/328935099</guid>
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         <title>Forming a Question or Hypothesis </title>
         <author>s_mock</author>
         <link>https://padlet.com/s_mock/qprhx6n7kq2b/wish/328935278</link>
         <description><![CDATA[<div>Questions:<br>If I drag a block across a surface, how will the mass of the block affect the amount of force it takes to drag it ? <br><br>Background:<br>First of all I know that friction is a force that opposes motion. This investigation explores how different variables can change frictions effect on objects. Newton's second law states that " the acceleration of an object produced by a net applied force is directly related to the magnitude of the force, and inversely related to the mass of the object". This law shows that if you exert the same amount of force on two objects of different mass, you will get different accelerations. The effect on the smaller object will be greater. So it takes more force to move a bigger object. An example of this in my life is when I decided to rearrange my room. It was harder to push pull or lift the heavier objects to move them. Every object in the universe that has mass exerts a gravitational pull, or force, on every other mass. The size of the pull depends on the mass of the object. So the more mass an abject has the more gravitational pull it has. And the more gravitational pull it has the more force is required to move it.<br><br>Hypothesis:<br>If I drag blocks with different amounts of mass, the block with the most mass will require the most amount of force to move it because the more mass an object has the more force is required to move it.<br><br></div>]]></description>
         <enclosure url="" />
         <pubDate>2019-02-07 19:24:59 UTC</pubDate>
         <guid>https://padlet.com/s_mock/qprhx6n7kq2b/wish/328935278</guid>
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         <title>Analyzing and interpreting Results</title>
         <author>s_mock</author>
         <link>https://padlet.com/s_mock/qprhx6n7kq2b/wish/328936307</link>
         <description><![CDATA[<div>Analyze and interpret results: Because the numbers were greater when reading how much force to move a block when the mass was bigger, this tells us that the more mass an object has the more force is required to move it. Because the more mass an object has the more gravitational pull it has toward the earth and the more it weighs. And the more friction it has against the ground because of the force pulling it down. Friction is a force that opposes motion. <br><br>Conclusion: If I drag a block across a surface the mass of block will affect the amount of force required to move it. The mass of a block affects how much gravity acts on it and the amount of gravity affects how much pull it has toward the earth and the more friction this causes when trying to move it. What I learned in this experiment was how different variables can change frictions affect on objects. My hypothesis was correct. The block with the most mass required the most amount of force to move it because the more mass an object has the more force is required to move it. Another question that I could explore that is related to frictions affect on objects is... If I drag a block across different surfaces how will the different amounts of friction caused by the different surfaces affect how much force is required to move them ?</div>]]></description>
         <enclosure url="" />
         <pubDate>2019-02-07 19:26:40 UTC</pubDate>
         <guid>https://padlet.com/s_mock/qprhx6n7kq2b/wish/328936307</guid>
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