Magnetic Fields Unit Test 2024

Front

What happens when two magnets are brought close together and then released?

Back

The magnets will move away from each other because the magnetic force will push them apart.

Front

What is a model in the context of science?

Back

A model is an object, diagram, or computer program that makes something simpler or easier to see.

Front

What is defined as a push or a pull in physics?

Back

A force.

Front

What is a system in scientific terms?

Back

A set of interacting parts forming a complex whole.

Front

What will happen when two magnetic toy trains are placed very close to each other?

Back

Magnetic force will push the trains apart.

Front

What is the definition of a magnetic field?

Back

A magnetic field is a region around a magnet where magnetic forces can be detected.

Front

How do like poles of magnets interact?

Back

Like poles of magnets repel each other.

Front

How do opposite poles of magnets interact?

Back

Opposite poles of magnets attract each other.

Front

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

Back

The force between two magnets can be calculated using the formula F = (k * |m1 * m2|) / r^2, where F is the force, k is a constant, m1 and m2 are the magnetic moments, and r is the distance between the magnets.

Front

What is the role of magnetic fields in electric motors?

Back

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