Electricity and Charge Flashcard

Front

Protons have a _______________ electrical charge: electrons have a _________________ electrical charge.

Back

Protons have a positive electrical charge; electrons have a neutral electrical charge.

Front

Current is usually the flow of _____________.

Back

Current is usually the flow of electrons.

Front

Materials that do not allow electric current to pass through easily are called ______________.

Back

Materials that do not allow electric current to pass through easily are called insulators.

Front

Making wires thinner, longer, or hotter _____________ voltage.

Back

Making wires thinner, longer, or hotter decreases voltage.

Front

The tendency for a material to oppose the flow of electrons is called ______________.

Back

The tendency for a material to oppose the flow of electrons is called resistance.

Front

What is the unit of electric current?

Back

The unit of electric current is the Ampere (A).

Front

What is the relationship between voltage, current, and resistance?

Back

The relationship is defined by Ohm's Law: V = I × R, where V is voltage, I is current, and R is resistance.

Front

What is an electric circuit?

Back

An electric circuit is a closed loop that allows current to flow from a power source to a load and back.

Front

What is the difference between conductors and insulators?

Back

Conductors allow electric current to flow easily, while insulators do not.

Front

What is static electricity?

Back

Static electricity is the buildup of electric charge on the surface of objects.