What Is the Size of the Force a Person Exerts

question 79

Multiple Choice

What is the size of the force a person exerts on Earth compared to the force Earth exerts on that person as they stand on its surface?

• A) zero because they do not exert a force on Earth
• B) very small because their mass is small compared to that of Earth
• C) twice as large because of Earth's rotation
• D) the same

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Definitions:

Zero Correlation

A statistical term indicating no relationship between two variables, meaning that changes in one do not predict changes in the other.

Independent Variable

In an experiment, the variable that is manipulated or changed by the researcher to observe its effects on the dependent variable.

Dependent Variable

In research, the outcome factor that researchers measure to examine the effect of one or more independent variables.

Convenience Sample

A non-random selection of participants based on their availability and willingness to take part, not representative of the general population.