Unit 2 Test Review (Scientific Data Handling)

Unit 2 Test Review (Scientific Data Handling)

Assessment

Flashcard

Science

9th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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16 questions

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1.

FLASHCARD QUESTION

Front

What are significant digits?

Back

Significant digits (or significant figures) are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

2.

FLASHCARD QUESTION

Front

How do you determine the number of significant digits in a number?

Back

To determine the number of significant digits, count all non-zero digits, any zeros between them, and any trailing zeros in the decimal part. Leading zeros are not counted.

3.

FLASHCARD QUESTION

Front

Convert 0.00456 to scientific notation.

Back

4.56 x 10^-3

4.

FLASHCARD QUESTION

Front

What is the scientific notation for the number 123456?

Back

1.23456 x 10^5

5.

FLASHCARD QUESTION

Front

How do you round a number using significant digits?

Back

When rounding, look at the digit immediately after the last significant digit. If it's 5 or greater, round up; if it's less than 5, keep the last significant digit the same.

6.

FLASHCARD QUESTION

Front

Calculate 3.6 × 2.5 and round using significant digit rules.

Back

9.0

7.

FLASHCARD QUESTION

Front

What is the result of 15.5 - 4.789 rounded using significant digit rules?

Back

10.7

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