A Block Is on a Frictionless Table, on Earth $s ^ { 2 }$

question 27

Multiple Choice

A block is on a frictionless table, on earth. The block accelerates at 3.0 m/ $s ^ { 2 }$ when a $20 \mathrm {~N}$ horizontal force is applied to it. The block and table are set up on the Moon where the acceleration due to gravity is 1.62 m/ $s ^ { 2 }$ . The weight of the block on the Moon is closest to

• A) 11 N.
• B) 9.5 N.
• C) 8.1 N.
• D) 6.8 N.
• E) 5.5 N.

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Definitions:

Coefficient

Before a variable in an algebraic expression, there lies a constant or numerical amount that serves to multiply it.

Constant

A fixed value in mathematics and science that does not change in a given context, often represented by a symbol.

Predict

The act of making an educated guess about the future based on past and present data or trends.

Lurking Variable

A hidden variable that is not measured in a study but can influence the relationship between the studied variables.