physics
Name __________________________________ Electric Fields
Go to HYPERLINK "http://phet.colorado.edu/simulations/sims.php?sim=Electric_Field_Hockey" http://phet.colorado.edu/simulations/sims.php?sim=Electric_Field_Hockey
and click on Run Now.
1. You rub balloons in your hair and then hang them like in the picture below. Explain why you think they move apart and what might affect how far apart they get.
When the balloons are rubbing together they are taking charges(electrons ) from one another. When rubbed against your hair, the balloon steal electrons from your hair leaving you hair positive. You hair will then become attracted to the ballon because you hair is positively charged and the balloon negatively charged. You hair will stand up even when the balloon is not close to you because each hair is positive and repelled by the other positive hairs.
2. Test your ideas using Electric Field Hockey in the Practice mode. Make a table to record your observations about what affects the direction and speed of the puck. Your table should demonstrate that you have run controlled tests with all the variables.
The puck is affected by how close the charges are to it and what the puck's charge is. For example if the puck is positive the positive charges are repelled; the arrow grows longer and away from the puck as the positive charges move closer to the puck. IF the puck is positive and the charges are negative, the arrow grows larger as the negative charges move closer and points toward the charge.
3. Reflect on your ideas from question #1 and your data from question #2. How do your observations support, dispute or add to your ideas about what affects how charged bodies interact? My observations support my ideas from question 1. After experimenting with the puck and charges I was able to see how the charges affect the puck by either repelled or attracting it to the charges.
4. As you put charges onto the playing area, arrows appear on the puck.
Go to HYPERLINK "http://phet.colorado.edu/simulations/sims.php?sim=Electric_Field_Hockey" http://phet.colorado.edu/simulations/sims.php?sim=Electric_Field_Hockey
and click on Run Now.
1. You rub balloons in your hair and then hang them like in the picture below. Explain why you think they move apart and what might affect how far apart they get.
When the balloons are rubbing together they are taking charges(electrons ) from one another. When rubbed against your hair, the balloon steal electrons from your hair leaving you hair positive. You hair will then become attracted to the ballon because you hair is positively charged and the balloon negatively charged. You hair will stand up even when the balloon is not close to you because each hair is positive and repelled by the other positive hairs.
2. Test your ideas using Electric Field Hockey in the Practice mode. Make a table to record your observations about what affects the direction and speed of the puck. Your table should demonstrate that you have run controlled tests with all the variables.
The puck is affected by how close the charges are to it and what the puck's charge is. For example if the puck is positive the positive charges are repelled; the arrow grows longer and away from the puck as the positive charges move closer to the puck. IF the puck is positive and the charges are negative, the arrow grows larger as the negative charges move closer and points toward the charge.
3. Reflect on your ideas from question #1 and your data from question #2. How do your observations support, dispute or add to your ideas about what affects how charged bodies interact? My observations support my ideas from question 1. After experimenting with the puck and charges I was able to see how the charges affect the puck by either repelled or attracting it to the charges.
4. As you put charges onto the playing area, arrows appear on the puck.