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Physics BWD10903 Chapter 1 Measurement: Food Science and Technology

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Physics BWD10903 Chapter 1 Measurement: Food Science and Technology

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Questions and Answers

What should you avoid when performing calculations with numerical values?

Including units for every quantity

Attaching the expected units after obtaining the answer

Carrying units through the entire calculation

Dropping the units early in the calculation (correct)

Why is it important to include the units in every step of a calculation?

To ensure that the units for the answer turn out to be incorrect (correct)

To discourage others from verifying the answer

To make the calculation more complex

To simplify the calculation process

In a certain number, which zero digits are considered as significant figures?

Zero digits at the beginning of the number

Zero digits within a number

Zero digits at the end of a number with a decimal point

Zero digits to the right of the last nonzero digit with no decimal point (correct)

What is the significance of nonzero digits in a certain number?

They indicate precision and accuracy in measurements Signup and view all the answers

In a decimally expressed number, which zero digits are counted as significant figures?

Zero digits following a nonzero digit Signup and view all the answers

Which system adopts the meter for length, the kilogram for mass, and the second for time?

The International System of Units (SI) or mks system Signup and view all the answers

In which system is a mix of units that belong to two different systems NOT ALLOWED?

The International System of Units (SI) or mks system Signup and view all the answers

Which system adopts the centimeter as a unit of length, the gram for mass, and the second for time?

The cgs system Signup and view all the answers

Which system adopts the foot for length, the pound for weight, and the second for time?

The British Engineering System (BE) or ft–lb–s system Signup and view all the answers

Which system was in common use in Britain and in some of the previously British-influenced regions?