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Exponents and Powers — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSExponents and Powers3 Marks
Question
Investigating Solar System The table shows the average distance from each planet in our solar system to the Sun.
PlanetDistance from Sun (km)Distance from Sun in (km) Standard Notation
Earth149600000
Jupiter778300000
Mars227900000
Mercury57900000
Neptune4497000000
Pluto5900000000
Saturn1427000000
Uranus2870000000
Venus108200000
(i) Write the distance from each planet to the Sun in standard notation.
(ii) Arrange the planets from closest to the Sun to farthest from the Sun.
✓

Answer

(i) Earth $=1.496 \times 10^8 km$, Jupiter $=7.783 \times 10^8 km$ Mars $=2.279 \times 10^8 km$, Mercury $=5.79 \times 10^7 km$ Neptune $=4.497 \times 10^9 km$, Pluto $=5.9 \times 10^9 km$ Saturn $=1.427 \times 10^9 km$, Uranus $=2.87 \times 10^9 km$ Venus $=1.082 \times 10^8 km$
(ii) On arranging the planets from closest to the Sun to farthest from the Sun, we get following order Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto.

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