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ch. 32 notes
ch. 32 questions
|what kind of charges repel?
|like charges repel
|what kind of charges attract ?
|opposite charges attract
|if a rod is rubbed with wool the wool is has a positive charge because ?
|electrons are transfered from the wool to the rod . protons can't be transfered.
|a neutral rubber rood becomes negatively charged
|the wool looses electrons
|what charge do electrons protons and neutrons have?
|electrons have negative charge, protons have a postive charge, nuetrons are neutral
|what is a charged atom called ?
|if an atoms gains electrons what kind of ion is it?
|a negative ion
|what kind of net charge does a neutral atom have ?
|a zero net charge
|what is the principle of Conservation of charge?
|that electrons are not created or destroyed they are transfered
|what are the three different ways to charge an object ?
|friction , induction and contact
|what provides a path for electrons to move from or to the ground ?
|what is an example of charging by induction in nature ?
|what is polarization ?
|polarization is when insulators can be charged by induction even though they don't have electrons that are free to move throughout the material ,