Using entirely made up numbers and units, the force of gravity can be measured using
The mass of a star is 200,000 Floops, the mass of the planet Ploof is 100 Floops, and the distance between them is 3000 Polfs.
6 points
6
Question 2
2.
Calculate orbital period of Mars in years. Mars is 1.5 au from the Sun (1.5x as far from the Sun as the earth). Use Kepler’s 3rd Law p2 r3, remembering that 1 year is the orbital period of earth and 1 au is the distance from the sun to the earth.
2 points
2
Question 3
3.
Vectors a and b are shown. Draw vector a+b
2 points
2
Question 4
4.
Vector a is shown. Show vector -a. Please start vector -a from the dot at (2,6)
2 points
2
Question 5
5.
Amalthea and Thebe are both moons of Jupiter. Which one fact would you need to know in order to judge which one takes longer to orbit the planet?
2 points
2
Question 6
6.
Totally fictional space object Thor moves 60 times faster at perihelion than aphelion. Another fiction object, Odin moves 20 times faster at perihelion than aphelion. You could conclude that the objects orbit has
2 points
2
Question 7
7.
Kepler’s third law can be written
give one example of units the constant k might be.
3 points
3
Question 8
8.
Name the three changing variables that affect the Milankovitch cycle.