Quantitative vs Non-Quantitative: Precision in Scientific Observations

Chapter 2, Problem 10P

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QUESTION:

Why is a quantitative observation more useful than a non- quantitative one? Which of the following are quantitative?

(a) The Sun rises in the east,

(b) An astronaut weighs one-sixth as much on the Moon as on Earth.

(c) Ice floats on water,

(d) An old-fashioned hand pump cannot draw water from a well more than 34 ft deep.

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Quantitative vs Non-Quantitative: Precision in Scientific Observations
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Unpack the difference between quantitative and non-quantitative observations. Examples include a person's weight on the Moon and the depth a hand pump can reach. Learn why precise measurements are crucial in scientific studies.

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QUESTION:

Why is a quantitative observation more useful than a non- quantitative one? Which of the following are quantitative?

(a) The Sun rises in the east,

(b) An astronaut weighs one-sixth as much on the Moon as on Earth.

(c) Ice floats on water,

(d) An old-fashioned hand pump cannot draw water from a well more than 34 ft deep.

ANSWER:

Here we have to describe why is a quantitative observation more useful than a non-quantitative one and have to state which of the following are quantitative.

(a) The Sun rises in the east, (b) An astronaut weighs one-sixth as much on the Moon as on Earth (c) Ice floats on water, (d) An old-fashioned hand pump cannot draw water from a well more than 34 ft deep.

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Quantitative measurement is one by which we can count a quantity. It is more useful because by measuring the quantity we can get the accuracy of our result and the measured quantities can also be compared whereas non-quantitative measurement is the same as qualitative observation.

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