Magnetic Fields

Front

What is a magnetic field?

Back

A magnetic field is an invisible field around a magnet where magnetic forces can be felt. It is created by moving electric charges or by magnetic materials.

Front

What happens when two north poles of magnets are brought close together?

Back

They repel each other and move away from each other.

Front

What happens when a north pole and a south pole of magnets are brought close together?

Back

They attract each other and move towards each other.

Front

What is kinetic energy?

Back

Kinetic energy is the energy that an object possesses due to its motion.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.

Front

What is the relationship between magnetic poles and their forces?

Back

Like poles repel each other (north-north or south-south), while opposite poles attract each other (north-south).

Front

What is the effect of distance on magnetic force?

Back

The strength of the magnetic force decreases as the distance between the magnets increases.

Front

What is the role of magnetic fields in electric motors?

Back

Magnetic fields interact with electric currents to produce motion in electric motors.

Front

What is the unit of measurement for magnetic field strength?

Back

The unit of measurement for magnetic field strength is the Tesla (T).

Front

How can you visualize a magnetic field?

Back

A magnetic field can be visualized using iron filings or by drawing field lines that show the direction and strength of the field.