Give Two Explanations of Why a Cannonball Fired from a Long-Barrel

question 18

Essay

Give two explanations of why a cannonball fired from a long-barrel cannon will have a greater velocity than from a shorter cannon.

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Definitions:

Correlational Method

A research strategy that examines the extent to which two variables are related, without inferring a causal relationship between them.

Variable Predicts

Indicates how one measured factor can forecast the outcome or changes in another factor, often used in statistical analysis to determine relationships between variables.

Double-blind Procedure

A research method in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.

Memory-enhancing Drug

A memory-enhancing drug is any substance that is claimed to improve memory, cognitive function, or facilitate accelerated learning.