GCSE Edexcel Physics 1.2 - Prefixes

Question 1

Meaning of giga (G)

Accepted Answer

x10⁹

Question 2

Meaning of mega (M)

Accepted Answer

x10⁶

Question 3

Meaning of kilo (k)

Accepted Answer

x10³

Question 4

Meaning of centi (c)

Accepted Answer

x10⁻²

Question 5

Meaning of milli (m)

Accepted Answer

x10⁻³

Question 6

Meaning of micro (μ)

Accepted Answer

x10⁻⁶

Question 7

Meaning of nano (n)

Accepted Answer

x10⁻⁹

Question 8

Standard form

Accepted Answer

Writing numbers as a × 10ⁿ where a is at least 1 and less than 10 Eg: 1.03 x 10⁹

Question 9

Significant figures

Accepted Answer

Number of digits, not counting leading zeros (zeros at the front) 0.00204 (3s.f.)

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