Based on the text provided in the "Reading Strategy" table and the surrounding content, here are the main ideas to complete the chart:
b. Electric Forces
The text explains that electric force is the attraction or repulsion between charged objects. It specifically states, "Like charges repel, and opposite charges attract."
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Main Idea: Opposite charges attract and like charges repel.
c. Electric Fields
Although the specific definition paragraph isn't fully visible, the vocabulary list includes "electric field," and standard physics texts define this as the region around a charge where a force is felt. Based on the context of forces acting at a distance (like gravity mentioned in the text):
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Main Idea: An electric field is the area around a charged object where electric force is exerted.
d. Static Electricity
The title of the section is "Electric Charge and Static Electricity." The text describes how rubbing a balloon on hair transfers electrons, creating a net charge. This buildup of charge on an object is static electricity.
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Main Idea: Static electricity is the buildup of electric charge on the surface of an object.
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Final Answer:
b. Opposite charges attract and like charges repel.
c. An electric field is the area around a charged object where electric force is exerted.
d. Static electricity is the buildup of electric charge on an object.
Parent Tip: Review the logic above to help your child master the concept of prentice hall physical science concepts in action worksheet.