Significant Figures

Multiple Choice

Which scale is more accurate?

• Scale 1

• Scale 2

Multiple Choice

Which scale is more precise?

• Scale 1

• Scale 2

• Both have the same precision

Multiple Choice

Which ruler is more precise?

• Top Ruler

• Bottom Ruler

Multiple Choice

Which is more precise, which is more accurate?

• Target 1 precise, Target 2 accurate

• Target 1 accurate, Target 2 precise

• Target 1 is more accurate and more precise

• Target 2 is ore accurate and more precise

Significant Figures

Significant figures act as a form of honesty in scientific reporting. They implicitly guarantee that a value is known to a certain degree


We measure how many positions of a number we know for certain!!

Significant Figures

100 - less precision, we only know 1 position for certain

100.001 - more precise, we know 6 positions for certain

Significant Figures

Example:

100 --> less precise, I know for certain 1 number

100.010 --> a more precise value, I know for certain 6 numbers

100 = 1

2200 = 2

Draw

How many significant figures are in

95060 ?

Draw

How many significant figures are in

56699 ?

Dropdown

The number 0.02 has ​

Select answer

sig figure.

The number 0.0202 has ​

Select answer

sig figures.

The number 0.00450500 has ​

Select answer

sig figures.

Draw

How many significant figures in

1.010 ?

Draw

How many significant figures in

100.0 ?

Draw

Round the following to 3 significant figures

1543021

Draw

Round the following to 2 significant figures

1543021

Draw

Round the following to 2 significant figures

150.15

Draw

Round the following to 1 significant figures

0.05563