True/False ( 1 point each): Oppositely charged objects repulse each other and like charges attract each other: 2 € Insulators are objects where charges do not move easily through T7 An object normally becomes negatively charged by losing protons. polarized object has zero net charge: 1 An insulator cannot hold a charge: An object placed at a high voltage location always has high potential energy
The Correct Answer and Explanation is:
Let’s go through the statements one by one:
- Oppositely charged objects repulse each other and like charges attract each other.
False. This statement is incorrect. Oppositely charged objects attract each other, while like charges repel each other. This is a fundamental principle of electromagnetism: objects with the same charge (both positive or both negative) will push away from each other, and objects with opposite charges (one positive and one negative) will attract each other. - Insulators are objects where charges do not move easily through.
True. Insulators are materials that do not allow electric charges to move freely. This is because the electrons in insulators are tightly bound to their atoms. Examples of insulators include rubber, plastic, and glass. - An object normally becomes negatively charged by losing protons.
False. This is incorrect. An object becomes negatively charged by gaining electrons, not by losing protons. Electrons are negatively charged, and when an object gains electrons, it accumulates a negative charge. Protons, being positively charged, are not typically lost in this process. - A polarized object has zero net charge.
True. Polarization refers to the redistribution of charge within an object, where positive and negative charges shift slightly within the material. However, the object as a whole typically remains electrically neutral (with no net charge) even though the charges are separated within the object. So, a polarized object does indeed have a zero net charge. - An insulator cannot hold a charge.
False. This is incorrect. An insulator can indeed hold a charge, but it does so by keeping the charge localized. The charges in an insulator do not move freely, so the charge stays in place and does not spread out or dissipate easily. - An object placed at a high voltage location always has high potential energy.
True. The electric potential energy of an object depends on its charge and the potential it is exposed to. If an object is placed in a high voltage region (or electric field), it will have high potential energy. The potential energy increases as the charge is moved to a region of higher electric potential.
Summary:
- Oppositely charged objects attract each other.
- Insulators prevent charge movement but can still hold a charge.
- Negative charge results from gaining electrons, not losing protons.
- Polarized objects still have zero net charge.
- Insulators can hold charge, but it remains localized.
- High voltage location means higher potential energy for a charged object.
