As Part of a Science Project You Investigate the Effect

question 19

Multiple Choice

As part of a science project you investigate the effect of punching holes in a plastic container of water and observing the flow of liquid out of the different holes.If the container has a water level 20 cm above the base and you punch a hole in the side 12 cm high,calculate the speed at which water will initially flow out of the hole.

• A)1.25 m/s
• B)15.3 m/s
• C)12.5 m/s
• D)1.50 m/s
• E)2.25 m/s

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Definitions:

Mean Value

The average of a set of numbers, calculated by dividing the sum of all the values by the number of values.

Scores

Quantitative values assigned to individuals or items for the purpose of ranking, selection, or comparison.

Exam Mean

The average score obtained by students on an exam, calculated by summing all the scores and dividing by the number of students who took the exam.

Increase

A rise or growth in quantity, size, or intensity.