Question

The average distance of Uranus from the sun is about 20 AU and that of Pluto is about 40

AU. Find the ratio of the time periods of reveolution of these planets around the sun.​

Answer 1

Answer:

Explanation:

Our solar system is so big it

is almost impossible to imagine its

size if you use ordinary units like

feet or miles. The distance from

Earth to the Sun is 93 million miles

(149 million kilometers), but the

distance to the farthest planet

Neptune is nearly 3 billion miles

(4.5 billion kilometers). Compare

this to the farthest distance you can

walk in one full day (70 miles) or

that the International Space Station

travels in 24 hours (400,000 miles).

The best way to appreciate the size of our solar system is by creating a scaled model of it that

shows how far from the sun the eight planets are located. Astronomers use the distance between Earth

and sun, which is 93 million miles, as a new unit of measure called the Astronomical Unit. It is defined to

be exactly 1.00 for the Earth-Sun orbit distance, and we call this distance 1.00 AUs.

Problem 1 - The table below gives the distance from the Sun of the eight planets in our solar system.

By setting up a simple proportion, convert the stated distances, which are given in millions of kilometers,

into their equivalent AUs, and fill-in the last column of the table.

Planet Distance to the Distance to the

Sun in millions Sun in

of kilometers Astronomical

Units

Mercury 57

Venus 108

Earth 149

Mars 228

Jupiter 780

Saturn 1437

Uranus 2871

Neptune 4530

Space Math

1.1

Problem 2 – Suppose you wanted to build a scale model of our solar system so that the orbit of

Neptune was located 10 feet from the yellow ball that represents the sun