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SC 17 temp

temporary science 17 notes for mideterms

QuestionAnswer
Is charge a physical or chemical property? physical
like charges repel, or push away, and opposites attract law of electric charge
the force between charged objects electric force
What is charging by friction? rubbing
Conduction? direct contact
Induction? not direct contact (induces)
Can charges be created? Why or why not? no because they move from atom to atom, conservation
What instrument can you use to check if an object is charged? electroscope
electric charge at rest on an object static electricity
Who came up with the theory of acrylic rods bending water? Benjamin Franklin
rate at which charges pass a given point electric current
What is the unit for electric current? amperes
What is resistance expressed in? ohms (omega sign)
How is resistance affected by temperature? increases because electrons get in the way
Thickness? less atoms to get around
Length? short is easier because less distance
What are the two types of cells? wet and dry
Created by: Tsarmina
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