FREE AND STUDY GAMES ABOUT ELECTROSTATICS EXAM

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FREE AND STUDY GAMES ABOUT ELECTROSTATICS EXAM

QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -20 Questions and Answers -format set of multiple-choice -Expert- Explanation Question 1: Much electronic equipment contains transistors and diodes that are made from semiconductors. Semiconductors

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can be very good insulators, can conduct electricity and contain helpful impurities.Question 2: Semiconductors can be made to conduct electricity and they can also be made to act like good insulators.

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True

Question 3: A positive ion has

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more protons than electrons

Question 4: Objects can be charged by

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induction, friction, touching

Question 5: This law states that the force between any two charges depends

directly on the size of the charges and inversely on the square of the distance between the charges

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Coulomb's law Question 6: When the distance between two charges is halved, the electrical force between the charges

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quadruples Question 7: Bring a charged object near a conductor and then momentarily touch the conductor. This demonstrates charge by

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induction.

Question 8: The fundamental force underlying all chemical reactions is

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Electrical Question 9: Two charges are sepa by a certain distance. If the magnitude of each charge is doubled, the force on each charge is

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quadrupled.

Question 10: To charge an object by induction, the process of grounding

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may or may not occur Question 11: The charge distribution in some molecules is permanently sepa into positive and negative regions. Such molecules are called

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electric dipoles.

Question 12: A negatively charged rod is brought near a metal can that rests on a wood table.You touch the opposite side of the can momentarily with your finger. The can is then

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positively charged

Question 13: The reason a charged balloon will stick to a wall is that

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induced opposite charges in the wall are closer than other wall charges.Question 14: A difference between electrical forces and gravitational forces is that electrical forces include

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repulsive interactions Question 15: To be safe in the unlikely case of a lightning strike, it is best to be inside a building framed with

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steel Question 16: Two charged particles held close to each other are released. As they move, the force on each particle increases. Therefore, the particles have

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opposite signs.

Question 17: Particle A has twice as much charge as particle

• Compared to the force on particle A, the force on particle B is

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the same

Question 18: Particle A has twice as much charge as particle

• Compared to the force on particle A, the force on particle B is

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the same.

Question 19: Electrical polarization occurs when

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charge distribution in a neutral molecule separates Question 20: When a charged cloud passes overhead, the ground below is charged by

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induction