What Do We Mean When We Say That Particles Such

question 75

Multiple Choice

What do we mean when we say that particles such as neutrinos or WIMPs are weakly interacting?

• A)They interact with other matter only through the weak force and not through gravity or any other force.
• B)They are only weakly bound by gravity, which means they can fly off and escape from galaxies quite easily.
• C)The light that they emit is so weak that it is undetectable to our telescopes.
• D)They respond to the weak force but not to the electromagnetic force, which means they cannot emit light.

---

Definitions:

Ninhydrin Test

A chemical test used for detecting the presence of amino acids, where a color change indicates a positive result.

Major Ionization State

The predominant form of a molecule at a given pH level, determined by the molecule's dissociation into ions in solution.

Histidine

An essential amino acid important in the growth and repair of tissues, often mentioned in the context of protein synthesis.

pKa Values

A quantitative measure of the strength of an acid in solution, defined as the negative logarithm of the acid dissociation constant (Ka).