Measuring Techniques and Quantities

Measuring Techniques and Quantities

9th Grade

16 Qs

quiz-placeholder

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Measuring Techniques and Quantities

Measuring Techniques and Quantities

Assessment

Quiz

Physics

9th Grade

Practice Problem

Hard

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the SI unit for length?

centimeter

millimeter

kilometer

meter

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define accuracy in measurements.

Accuracy is the total number of measurements taken.

Accuracy is the same as precision in measurements.

Accuracy refers to the consistency of repeated measurements.

Accuracy is the degree to which a measurement reflects the true value.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between accuracy and precision?

Accuracy is about correctness; precision is about consistency.

Accuracy is the degree of detail; precision is the level of effort.

Accuracy is about the number of attempts; precision is about the time taken.

Accuracy measures the average; precision measures the total.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many significant figures are in the number 0.00456?

5

4

2

3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the unit of mass in the SI system?

gram

kilogram

ounce

pound

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the term 'significant figures'.

Significant figures are the total number of digits in a number.

Significant figures refer to the number of decimal places only.

Significant figures are irrelevant in scientific calculations.

Significant figures are the digits in a number that indicate its precision.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of error occurs due to limitations of measuring instruments?

Measurement error

Random error

Systematic error

Instrumental error

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