Electric and Magnetic Forces: Electrostatics and Current Electricity

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Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the second of three Science Objects in the Electric and Magnetic Forces SciPack. It explores the ability of electrons to flow, producing an electric current. Negative charges, being associated with electrons on the outer edges of atoms, are far more mobile in materials than positive charges located in the nucleus at the center of an atom. In some materials, such as metals, electrons flow easily, whereas in insulating materials such as glass they can hardly flow at all. At very low temperatures, some materials become superconductors and offer no resistance to the flow of current. In between these extremes, semi-conducting materials differ greatly in how well they conduct, depending on their exact composition. Electric currents occur when charges move through conductors. Batteries and other devices store electrical energy by separating and concentrating charges. Electrical circuits provide a means of transferring electrical energy into other forms of energy such as heat, light, and sound.

Grades
  • Elementary
  • Middle

Community ActivitySaved in 4766 Libraries

Reviews (6)
  • on Sun Jan 24, 2016 5:50 PM

I teach electricity and magnetism to my third graders and this will be very beneficial to me and my unit. thank you!

Maxine Dibert  (Fairbanks, AK)
Maxine Dibert (Fairbanks, AK)

  • on Sun Mar 01, 2015 10:19 AM

This gives you a great opportunity to test your own comprehensive and mathematical understanding of electric currents before sharing with your students.

Robin Willig  (Rye Brook, NY)
Robin Willig (Rye Brook, NY)

  • on Tue Sep 02, 2014 5:36 AM

I really enjoy Science Objects. In 1-3 hours, the Electric and Magnetic Forces: Electrostatics and Current Electricity Science Object will help me re-learn, refresh, or learn for the first time some critical science concepts I will have to know to obtain my Science Educator credentials. I appreciate that I can complete them at my own pace, and that, if used as park of a SciPack, I have access to a content expert to go to for help. The NSTA Learning Center Science Objects are really beneficial!

Naomi Beverly  (Marietta, GA)
Naomi Beverly (Marietta, GA)

  • on Tue Jul 29, 2014 5:04 PM

This resource and the ones like it are particularly valuable for me for several reasons. First, I like the table of contents off to the left, which all ow me to keep track of what is coming up and see the entire lesson at once. Also, it is multisensory...engaging several senses. Finally, they are self paced, which I really need with my busy lifestyle.

Naomi Beverly  (Marietta, GA)
Naomi Beverly (Marietta, GA)

  • on Tue Jul 29, 2014 11:30 AM

This resource and the ones like it are particularly valuable for me for several reasons. First, I like the table of contents off to the left, which all ow me to keep track of what is coming up and see the entire lesson at once. Also, it is multisensory...enaging several senses. Finally, they are self paced, which I really need with my busy lifestyle.

Naomi Beverly  (Marietta, GA)
Naomi Beverly (Marietta, GA)

  • on Thu Jan 05, 2012 11:08 PM

This object took all of the experiments you probably did in school with static electricity and current and added more to them. It built the background information behind the experiments in an innovative way that would prepare the teacher not only for the experiments, but for the questions (even those that you don't expect, necessarily) that students may pose before, during and after.

Brandy Stewart
Brandy Stewart


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