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What are the key differences between Electric Force and Gravitational Force?
Electric Force: Source is electric charge, attractive or repulsive, much stronger, important at atomic scales. Gravitational Force: Source is mass, always attractive, much weaker, important at astronomical scales.
Compare the strength of electric force versus gravitational force.
Electric force is much stronger than gravitational force.
Compare the nature of electric force versus gravitational force.
Electric force can be attractive or repulsive, while gravitational force is always attractive.
Compare the source of electric force versus gravitational force.
Electric force arises from electric charge, while gravitational force arises from mass.
Compare the scales at which electric force and gravitational force are important.
Electric force is important at atomic and everyday scales, while gravitational force is important at astronomical scales.
What is the effect of increasing the distance between two charges on the electric force?
The electric force decreases rapidly (inversely proportional to the square of the distance).
What is the effect of doubling one of the charges on the electric force?
The electric force doubles.
What is the effect of placing a positive charge in an electric field?
The charge experiences a force in the direction of the electric field.
What is the effect of placing a negative charge in an electric field?
The charge experiences a force opposite to the direction of the electric field.
What is the effect of having like charges near each other?
They repel each other.
What is the effect of having opposite charges near each other?
They attract each other.
What is the definition of Electric Force?
The force exerted between electrically charged objects.
What is electric charge?
The fundamental property of matter that causes it to experience a force when placed in an electromagnetic field. Measured in Coulombs (C).
What is Coulomb's constant?
The proportionality constant in Coulomb's Law, approximately equal to 8.99 x 10^9 N⋅m²/C².
Define Coulomb's Law.
The magnitude of the electric force between two point charges is directly proportional to the product of the magnitudes of their charges and inversely proportional to the square of the distance between them.
What is the unit of electric force?
Newtons (N)