Pulsars Are Rotating Neutron Stars That Emit Beams of Electromagnetic

question 46

Multiple Choice

Pulsars are rotating neutron stars that emit beams of electromagnetic radiation that sweep around the universe like rotating lighthouse beams. The charged particles that emit these beams are believed to be

• A) "charmed" mesons and other exotic particles that on Earth exist only in laboratories.
• B) iron and other nuclei pulled from the neutron star's crust by its intense magnetic fields.
• C) plasma (ionized gas) spiraling onto the neutron star from a normal stellar companion.
• D) electrons and protons accelerated by the neutron star's intense magnetic fields.

---

Definitions:

Correlation Coefficient

A statistical measure that quantifies the degree to which two variables are related or move together.

Grammaticality

concerns the conformity to the rules of grammar of a particular language.

Age

The length of time that a person or entity has existed from its birth or creation to a given point.

Whorfian Hypothesis

The theory that the structure of a language determines or greatly influences the modes of thought and behavioral characteristic of the culture in which it is spoken.