Electric Force

What is the unit used to measure electric current?

• D) Watts

• C) Ohms

• B) Amperes

• A) Volts

What is the charge of a proton?

• B) Negative

• A) Positive

• C) Neutral

• D) Variable

What is the force between like charges?

• D) Variable

• B) Repulsive

• C) Neutral

• A) Attractive

What is the process of charging by direct contact called?

• C) Induction

• D) Polarization

• B) Friction

• A) Conduction

What is the difference in electric potential between two points called?

• A) Current

• C) Resistance

• D) Power

• B) Voltage

Which material allows electrons to move freely through it?

• A) Rubber

• B) Wood

• C) Copper

• D) Glass

What happens to the potential energy between two objects with opposite charges when they are moved apart?

• C) Remains the same

• A) Increases

• D) Becomes zero

• B) Decreases

What is the movement of charge by direct contact called?

• D) Polarization

• A) Conduction

• B) Friction

• C) Induction

What is the invisible region around a charged particle where the electric force is exerted on other charged particles or objects called?

• B) Magnetic field

• A) Electric field

• D) Electromagnetic field

• C) Gravitational field

What is the buildup of charges on an object called?

• D) Electric potential

• A) Electric current

• B) Electric field

• C) Static electricity