Electric Potential & Electric Potential Energy Review Flashcard

Front

What is Electric Potential?

Back

Electric Potential is the amount of electric potential energy per unit charge at a point in an electric field, measured in volts (V).

Front

What is the formula for Electric Potential (V)?

Back

V = U/q, where V is electric potential, U is electric potential energy, and q is the charge.

Front

What is the SI unit for Electric Potential?

Back

Volt (V).

Front

What is Electric Potential Energy?

Back

Electric Potential Energy is the work done to move a charge from a reference point to a specific point in an electric field, measured in joules (J).

Front

What is the formula for Electric Potential Energy (U)?

Back

U = k * (q1 * q2) / r, where k is Coulomb's constant, q1 and q2 are the charges, and r is the distance between them.

Front

What happens to two like charges when they are brought close together?

Back

They repel each other and accelerate away from each other.

Front

What happens to two unlike charges when they are brought close together?

Back

They attract each other and accelerate toward each other.

Front

What is Coulomb's Law?

Back

Coulomb's Law states that the force between two point charges is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.

Front

What is the value of Coulomb's constant (k)?

Back

Coulomb's constant (k) is approximately 9 x 10^9 Nm^2/C^2.

Front

If a charge of +7.8 x 10^9 C has an Electric Potential Energy of 750 J, what is the Electric Potential?

Back

9.6 x 10^-8 V.