Question

(i) The height of Mount Everest is 8848 m. Write it in standard form.
(ii) The speed of light is 300000000 m/sec. Express it in standard form.
(iii) The distance from the earth to the sun is 149600000000 m. Write it in standard form.

Answer 1

(i) The height of the Mount Everest is 8848 m.
In standard form, we have:
​$8848=8.848\times 1000\mathrm{m}=8.848\times {10}^3\mathrm{m}$.
(ii) The speed of light is 300000000 m/s.
In standard form, we have:
$300000000=3\times 100000000\mathrm{m}/\mathrm{s}=3\times {10}^8\mathrm{m}/\mathrm{s}$
(iii) The Sun$-$Earth distance is 149600000000 m.
In standard form, we have: $149600000000=1496\times 100000000=1.496\times 1000\times 100000000=1.496\times {10}^3\times {10}^8=1.496\times {10}^{11}\mathrm{m}$