Scientific Notation Review I

How do you recognise a number in scientific form? (Multiple answers)

• Its first value is an integer

• It has a base of 10 always 

•  The power of the 10 is between 1 and 10

• The power of the 10 is an integer 

• Its first value is between 1 and 10

Which of these numbers is in scientific form?

• 0.000567 

• 5670 

• 56700 

• 0.567 

Write 0.00789 in scientific form

Answer explanation

Hint: apply these properties

Answer explanation

Hint: apply these properties

Answer explanation

Hint: use

1 Astronomical Unit (AU) which is the distance between the sun and the earth is equal to approximately 150 million km. Express 1 AU in scientific form.

The minimum distance between Mars and Earth is 54.6 million km. How many Astronomical unit does this represent? 1 AU = 150 000 000 km

Answer explanation

1 AU = 150 million km