3. Experimental Error

Significant Figures

3. Experimental Error

# Significant Figures

**Significant figures** are necessary to communicate the level of accuracy with which values are recorded.Â

Significant Figures

1

concept

## Significant Figures

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2

example

## Significant Figures

2m

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● Multiplication/Division: Measurement with least ** SIG FIGS** determines final answer.

● Addition/Subtraction: Measurement with least ** DECIMAL PLACES** determines final answer.

3

example

## Significant Figures

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4

example

## Significant Figures

56s

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5

Problem

ProblemRead the ruler measurement to the correct number of significant figures.

A

1.2

B

1.170

C

1.17

D

1.20

E

1.10

6

Problem

ProblemRead the ruler measurement to the correct number of significant figures.

A

0.7

B

0.6

C

0.70

D

0.68

E

0.60