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26 Cards in this Set
- Front
- Back
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A charged particle is called an
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ion
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What does an electric field NOT depend on?
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the color of charges
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An atomic particle that carries a negative electric charge is called an
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electron
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Electrons that move from one object to another and remain at rest produce
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static electricity
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Why are electrons moving in electricity but not protons or neutrons?
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electrons flow freely outside the nucleus
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Between which particles would an electric force of attraction occur?
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electron and proton
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Silver, copper, and mercury are examples of good electric
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conductors
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What would happen if a lightning rod were made of insulating material rather than conducting material?
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the lightning would find another conductor
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A neutral object acquires an electric charge when it either gains or loses
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electrons
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Why is there more static electricity on dry days?
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there is no moisture to draw away electrons
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If an atom loses electrons, it becomes
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positively charged
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What is NOT located in the nucleus of the atom?
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electron
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What is NOT an insulator?
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silver
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What are 3 ways an object may become charged?
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friction
induction conduction |
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What is friction?
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rubbing together of two surfaces
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What is induction?
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When something is close to a charge
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What is conduction?
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electrons are able to flow from one object to another
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A force that pulls objects together is a force of
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attraction
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The loss of static electricity is called
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electric discharge
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All matter is made up of
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atoms
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The person who first discovered charge was
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Benjamin Franklin
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If an object contains more electrons than protons, it is said to be
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negatively charged
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What is an insulator?
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do not allow electric charges to flow freely
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What is a conductor
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allows electricity to flow freely
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In an uncharged electroscope, the leaves hang
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straight down
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An instrument that detects a charge is called an
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electroscope
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