A Puck Moves on a Horizontal Air Table $\sqrt { 2 }$

question 31

Multiple Choice

A puck moves on a horizontal air table.It is attached to a string that passes through a hole in the center of the table.As the puck rotates about the hole,the string is pulled downward very slowly and shortens the radius of rotation,so the puck gradually spirals in towards the center.By what factor will the puck's angular speed have changed when the string's length has decreased to one-half of its original length?

• A)2
• B)4
• C) \(\sqrt { 2 }\)
• D)1
• E)1/2

---

Definitions:

Nouns

Words that name people, places, things, or ideas.

Verbs

Words that describe actions, states, or occurrences and form the main part of the predicate of a sentence.

Prototype Theory

A theory in cognitive science that suggests concepts or category judgments are made by comparing new stimuli to the "best example" or prototype of that category.

Family Resemblance

The physical or behavioral similarities observed among members of the same family, attributing to shared genetics and environment.