A Person Running in Place on an Exercise Machine for 10

question 63

Multiple Choice

A person running in place on an exercise machine for 10 minutes uses up 17 Calories. Another person exercises by repeatedly lifting two 2.5-kg weights a distance of 50 cm. How many repetitions of this exercise are equivalent to 10 minutes of running?

• A) 730
• B) 1450
• C) 1500
• D) 2200
• E) 2900

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Definitions:

Traffic Lights

Traffic lights are signaling devices positioned at road intersections and pedestrian crossings to control the flow of traffic by displaying lights of standard colors (red, amber/yellow, and green) indicating stop, caution, and go, respectively.

Staring

Fixing one's gaze on someone or something for a long period, often in a manner that can be perceived as intense or aggressive.

Confounding Variable

An outside influence that changes the effect of a dependent and independent variable being examined in an experimental or observational study.

Independent Variable

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