Rolling a Ball Up an Inclined Plank Requires an Amount

question 29

Multiple Choice

Rolling a ball up an inclined plank requires an amount of work proportional to the

• A) horizontal distance the ball is shifted.
• B) height the ball is raised.
• C) sum of the horizontal distance the ball is shifted and the height the ball is raised.
• D) length of the plank.

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Definitions:

Hydroxide ions

Negatively charged ions made up of one oxygen and one hydrogen atom, symbolized as OH-.

Alkaline Solution

A solution with a pH value greater than 7, indicating it has fewer hydrogen ions than pure water and is commonly referred to as basic.

Basic Solution

A solution that has a pH greater than 7, indicating it has a higher concentration of hydroxide ions than hydrogen ions.

Organic Molecules

Compounds primarily made of carbon atoms, often containing hydrogen, oxygen, and other elements, that are the basis of life.