1When converting units of measurement, how do you decide which number to multiply or divide by?
2How many seconds are there in 1 nanosecond?
3What is scientific notation, and why is it needed?
4The East West Highway is 1030 km long. Write this in metres, in scientific notation.
5State the rules of scientific notation.
6The corona virus measures 0.0000001 m. Write this in scientific notation.
7Write 1 kilogram and 1 milligram in grams, as powers of ten.
8Why is it wrong to write 83000000000 W as \( 83 \times 10^{9} \) W? What is the correct form?