Coulombs law

A balloon is rubbed on a student's head. What occurs because of this?

• Charged particles on the balloon are destroyed

• Positively charged particles move from head to balloon

• Charged particles from the balloon are released into the air

• Negatively charged particles move from head to balloon

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The Electric Force is strongest when charges are...

• close together
• far apart
• the electric force is constant everywhere

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Which is the value of the constant in Coulomb's equation?

• k = 9·10^-9

• k = 9.8

• k = 6.67·10^-11

• k = 9 ·10⁹

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Find the magnitude of the force between two charges of 1.0 C each which are 1.0 meter apart?

• 9E-9 N
• 9E9 N
• 1.1E10 N
• 1.1E-10 N

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What variable is a Coulomb the unit for?

• Charge
• Force
• Distance
• Mass

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The unit to measure charge is

• Volts

• Newtons per coulomb

• Coulomb

• Joules

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What happens to the force between two charged objects when you triple the distance between them?

• 2X

• 1/9X

• 4X

• 1/4X

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What variable do "Newtons" represent?

• Electrostatic Charge
• Force
• Distance
• Mass

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What does the "k" represent in Coulomb's Law?

• charge

• Coulomb's Constant

• kilometers

• distance between charges

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Which setup of charged particles shown below has the two exert the most force on one another?

• 
• 
• 
• 

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