Electric Field, Electric Force, & Current Quiz

What is the force between two electric charges called?

• Magnetic force
• Gravitational force
• Electric force
• Nuclear force

Which of the following best describes an electric field?

• A region where magnetic forces act
• A region where gravitational forces act
• A region where electric forces act on charged particles
• A region where sound waves propagate

What is the unit of electric field strength?

• Volts (V)
• Amperes (A)
• Newtons per coulomb (N/C)
• Watts (W)

Which equation represents Coulomb's law?

• F = ma
• E = mc²
• F = kq₁q₂/r²
• V = IR

What happens to the electric force between two charges when the distance between them is doubled?

• It doubles
• It halves
• It remains the same
• It becomes one-fourth of the original force

Which of the following is NOT a characteristic of electric field lines?

• They start from positive charges
• They end on negative charges
• They cross each other
• They are closer together where the field is stronger

What is electric current?

• The flow of neutrons
• The flow of protons
• The flow of electric charge
• The flow of magnetic fields

What is the unit of electric current?

• Volt (V)
• Ampere (A)
• Ohm (Ω)
• Watt (W)

In which direction do electrons flow in an electric circuit?

• From positive to negative
• From negative to positive
• In both directions
• They don't flow

What is the relationship between current and charge?

• Current is the amount of charge
• Current is the rate of flow of charge
• Current is the opposite of charge
• There is no relationship