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WorksheetsCoulomb's Law
Total questions: 15
Worksheet time: 11mins
Which two particles are attracted to each other?
Two neutrons
A proton and an electron
Two protons
An electron and a neutron
A repulsive force exists between which two particles?
Two neutrons
An electron and a neutron
An electron and a proton
Two protons
As two oppositely charged particles approach each other, what happens to the electrical force between them?
The attractive force increases
The magnitude of the electric force decreases
The repulsive force increases
The magnitude of their charges increases
What happens to the electric force between two charges when the distance is tripled?
3 times less electric force
3 time more electric force
9 times less electric force
9 times more electric force
The figure shows a neutral glass rod and a positively charged metal sphere.
Which of the following best describes the movement of charges as this glass rod touches the sphere?
Protons move from the sphere to the glass rod.
Electrons move from the sphere to the glass rod.
Electrons move from the glass rod to the sphere.
Protons move from the glass rod to the sphere.
What is the SI unit for charge?
Joules
Coulombs
Newtons
Meters
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
Electrical forces are stronger than gravitational forces.
True
False
Coulomb's law says that the force between any two charges depends
directly on the size of the charges
inversely on the square of the distance between the charges
both are correct
Approximately how much force would be generated by two charged objects held 2 m apart, if q1 has a charge of 3.0 C and q2 has a charge of 4.0 C?
0.5 N
1.5 N
3 N
6 N
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
