WorksheetsCoulomb's Law
Total questions: 20
Worksheet time: 10mins
According to Coulomb's Law, when the distance increases, the electrostatic force ____________.
increases
decreases
remains unchanged
has no relationship to distance
The Coulomb is the unit for:
Charge
Force
Distance
Mass
What happens to the force between two charged objects when you double the distance between them?
it doubles
it is cut in half
it quadruples
it is cut by 1/4
If one of the charges doubles, what happens to the force?
it doubles
it gets cut in half
it quadruples
it is cut by 1/4
What is the unit for electrostatic charge?
Coulombs
Newtons
Meters
Joules
Coulomb’s law states that the force between two charged objects will __________ when the magnitude (value) of the object’s charge increases.
increase
decrease
stay the same
first increase, then decrease
What would a negative value for Fe mean?
The particles are moving away from each other
The particles have the same charge
The particles have opposite charges
The particles are moving towards each other
Select all answer that apply:
What kinds of particles do Coulomb's Law apply to?
electrons
protons
neutrons
neutral atoms
A repulsive force exists between which two particles?
Two neutrons
An electron and a neutron
An electron and a proton
Two protons
The variable "r" in Coulomb's Law would have what units?
Joules
Coulombs
Newtons
Meters
Which is the value of the constant in Coulomb's equation?
ke = 9·10-9
ke = 9.8
ke = 6.67·10-11
ke = 9 ·109
What does "r" measure?
the distance between the two charged objects
the amount of charge carried by the objects
the amount of force between two charged objects
the constant value for forces between the objects
What does Fe stand for?
the electrostatic force
the symbol for iron
the constant for the charges
the charges of the particles
What will be the units of F (or Fe)?
Newtons
Meters
Coulombs
Joules
As the value of r increases, what happens to the value of F?
F increases
F decreases
F never changes, q does
Cannot know from the information
What does q measure?
the distance between the two charged objects
the amount of charge carried by the object
the amount of force between two charged objects
Why are there two q's in the equation?
because there are two charged objects
because there are protons and electrons
because the particles are moving away from each other
because the particles are moving towards each other
What can you do to increase the value of k?
change the force
change the distance
change the charge
nothing can be done to change the value of k; it is a constant
An attractive force exists between which two particles?
Two neutrons
An electron and a neutron
An electron and a proton
Two electrons
Coulomb's Law is __________ proportional.
directly
inversely
polymetrically
exponentially
