Chapter 12
12.1
• Electric charge
• Electrostatic force
• Electroscope
• Electrons are transferred between objects when they are rubbed together
12.3
• Torsion balance measures the strength of the electrostatic force between 2 charges
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• Coulomb’s Law: The electrostatic force between 2 charged objects is proportional to the quantity of each of the charges and inversely proportional to the square of the distance between the charges.
• Gravitational Force Electrostatic Force
Product of objects’ masses Product of the objects’ charges
Always attractive Either attractive or repulsive
Depends on objects’ enormous mass Depends on charges particles at the atomic level
Chapter 17
17.1
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