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WorksheetsCoulomb's Law (08/04/2020)
Total questions: 20
Worksheet time: 40mins
The graph shows the relationship between the force of interaction and the magnitude of charge. What type of relationship is this?
Direct
Indirect
Inverse
Reverse
The image shows two charged particles with a force of 2.4 N. What would you predict the force of interaction would be when the distance doubles?
4.8 N
1.2 N
.6 N
.3 N
A 5 C and 8 C are 8 m apart. What is the force between them?
5.625 x 109
5.625 x 10-9
4.5 x 1010
4.5 x 10-10
A charge of 4 C and -7 C are 200 m apart. What is the force between them?
6.3 x 106
-6.3 x 106
2.52 x 1011
-2.52 x 1011
A point charge of +3.0 X 10-7 coulomb is placed 2.0 X 10-2 meter from a second point charge of +4.0 X 10-7 coulomb. What is the magnitude of the electrostatic force on the charges?
6.0 X 10-12 N
3.0 X 10-10 N
5.4 X 10-2 N
2.7 N
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
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
Select all answer that apply:
What kinds of particles do Coulomb's Law apply to?
electrons
protons
neutrons
neutral atoms
The variable "r" in Coulomb's Law would have what units?
Joules
Coulombs
Newtons
Meters
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
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
Electric charges exert which kind of force?
a field force
a contact force
a gravitational force
a frictional force
A 5 C and 8 C charge give off a force of 2.5 x 109 N. What is the distance between them?
11 m
12 m
121 m
144 m
