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Problems to our solar system _answers
1. Problem 1-2
3.1
17/26
3.2
4/26=2/13
3.3
Moon, Europa, Triton and Pluto
3.4
Io is 1/3 of the diameter of the Earth.
Titania is 4/9 of Io’s diameter: (1/3) x (4/9) = 4/27 of the diameter of the Earth
Comparing fractions 1/7 and 4/27
2. The scale of the Solar System model - Compare our planets
Answers:
1. (2/5) x (6/7) = 12/35
2. (5/2) x (50/13) = 250/26 = 125/13 times
3. Average =
(1,738+1,810+1,500+1,480+2,600+2,360+800+2,575+1,350+1,200+950)/11. So, the average
radius = 1,669 km.
Median radius = 1,500 km.
4. Operations ratios
5. Neptune is 4 times the size of Venus and Saturn is 10x the size of Venus, so Saturn is 10/4
= 5/2 times bigger than Neptune.
6. Jupiter is 11x the size of the Earth and Mars is the ½ of the Earth, so, Jupiter is 22x the size
of Mars.
3. The distances of the Universe
Answer: 0.38
1,4957 ------------------- = ------------ , X = 1 AU x (57/149) = 0.38 1 AU Χ
Possible answers
14.9
Wrong, think more carefully!
8,493
Wrong, think more carefully!
How many astronomical units is Saturn from the Sun?
0.10
Wrong, think more carefully!
Answer: 25.21
1,491,437 ------------------- = ------------ , X = 1 AU x (1,437/149) = 25.21 1 AU Χ
Possible answers
100
Wrong, think more carefully!
214,113
Wrong, think more carefully!