Electric Charges and Fields Flashcard

Front

What are groups of atoms with aligned magnetic poles called?

Back

Magnetic Domains

Front

What wave behavior occurs when a wave strikes an object and bounces off?

Back

Reflection

Front

Why is the sky blue?

Back

The blue light wavelength reflecting off of oxygen and nitrogen molecules in our atmosphere.

Front

If a fixture contains a 60-W bulb at 120 V, what current does it use?

Back

0.5 A

Front

What happens to two of the same electric charges that are close together?

Back

Repel each other.

Front

What is an electric charge?

Back

A property of subatomic particles that causes them to experience a force when placed in an electromagnetic field.

Front

What is the unit of electric charge?

Back

Coulomb (C).

Front

What is the principle of superposition in electric fields?

Back

The total electric field created by multiple charges is the vector sum of the electric fields created by each charge individually.

Front

What is Coulomb's Law?

Back

The law stating that the force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

Front

What is an electric field?

Back

A region around a charged particle where a force would be exerted on other charged particles.