Fall Review Flashcardziz

Front

What is velocity?

Back

Velocity is a vector quantity that refers to the rate at which an object changes its position. It includes both speed and direction.

Front

True or False: An object's velocity can be changed by changing its speed, its direction, or both.

Back

True

Front

What is the formula for calculating the force between two charges?

Back

The force (F) between two charges can be calculated using Coulomb's Law: F = k * |q1 * q2| / r^2, where k is Coulomb's constant, q1 and q2 are the magnitudes of the charges, and r is the distance between them.

Front

If two charges of equal magnitude exert a force of -441000 N when they are 1000 m apart, what is the magnitude of each charge?

Back

7 C

Front

What is the relationship between charge and distance in electrostatic force?

Back

The electrostatic force is inversely proportional to the square of the distance between the charges; as distance increases, the force decreases.

Front

What is the formula for calculating equivalent resistance in a series circuit?

Back

In a series circuit, the equivalent resistance (R_eq) is the sum of all resistances: R_eq = R1 + R2 + R3 + ...

Front

What is the equivalent resistance of a circuit with resistors of 100 ohms, 200 ohms, and 150 ohms in series?

Back

450 ohms

Front

What is a series circuit?

Back

A series circuit is a type of electrical circuit in which components are connected end-to-end, so that the current flows through each component in turn.

Front

What is a parallel circuit?

Back

A parallel circuit is a type of electrical circuit in which components are connected across the same voltage source, allowing current to flow through multiple paths.

Front

What happens to the total resistance in a parallel circuit as more resistors are added?

Back

The total resistance decreases as more resistors are added in parallel.