A Student Runs an Experiment to Test How Race Car

question 20

Essay

A student runs an experiment to test how race car drivers and different tracks affect time.He uses 3 different drivers on 4 different tracks.He randomizes the trials,performing 4 runs under each treatment condition,carefully recording how many laps each driver completes on each different track.

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Definitions:

Mixture

A physical combination of two or more substances in which each substance retains its own chemical identity and properties.

Alloy

A substance made by melting two or more elements together, at least one of them a metal, resulting in a material with characteristics different from the individual components.

Metallic Elements

Elements that are good conductors of heat and electricity, have a shiny appearance, and are malleable and ductile.

Homogeneous Mixture

A mixture in which the composition is uniform throughout, such as solutions where the solute is completely dissolved in the solvent.