Electric and Magnetic Forces

A set of flashcards covering key concepts about electric and magnetic forces, types of electricity, and electrical measurements for exam preparation.

What are the two types of electricity?

Direct Current (DC) flows in one direction, while Alternating Current (AC) reverses direction many times a second.

What is a conductor?

A conductor is a material that allows electricity to pass through it, such as copper or iron.

What is an insulator?

An insulator is a material that blocks the transmission of electricity, such as rubber or glass.

What does 'amps' measure?

Amps, short for amperes, measures the rate of electrical flow.

What does 'volts' measure?

Volts measure the force of the electrical flow, caused by the difference in electrical charges.

What is the formula for electric power?

Electric power (Watts) = current (Amps) x voltage (Volts), or P=VI.

What are the two types of charges in electric forces?

There are positive and negative charges.

What is static electricity?

Static electricity is the electric force where charges do not move through a current.

What is the measurement unit for electric current?

Electric current is measured in Amperes (A).

How does an electric field behave?

An electric field is positive if it moves outward from a charge and negative if it moves toward a charge.

What happens in a circuit panel or fuse box?

It shuts down the electricity to any portion of the house drawing too much power.

How much does 1 kWh equate to?

1 kWh equals 1000 watts used for 1 hour.