subject
Biology, 12.02.2021 05:50 ryanez5306

ACTIVITY 5 Working with Kepler's Laws
23
B
0
7. Examine Figure 5.3, which shows a planet, D, orbiting the Sun, A, in a counterclockwise
direction. Match the following terms with the letter that identifies the location in the figure:
• focus
aphelion
perihelion
• increasing speed
• decreasing speed
planet has fastest speed
planet has slowest speed
FIGURE 5.3
8. State Kepler's second law and give the physical reason why planets behave this way.
to
to
D
Not to scale
.
Step 4-Kepler's Third Law
Kepler's third law relates the time it takes a planet to go around the Sun (the period, P) to the
semimajor axis, A, of the orbit. If we measure Pin years and A in astronomical units (AU), the
simplified relationship (formula) is:
p2 = A3
9. According to Kepler's third law, all orbits with the same semimajor axis have the same period.
The two orbits in Figure 5.4 have the same value for A and thus must have the same P, but
how is this possible when the orbits have such different eccentricities? (Hint: With a circular
orbit, e = 0, does the distance of an object orbiting the Sun change?)
FIGURE 5.4


ACTIVITY 5

Working with Kepler's Laws
23
B
0
7. Examine Figure 5.3, which shows a planet, D, orbi

ansver
Answers: 3

Other questions on the subject: Biology

image
Biology, 21.06.2019 14:30, rileigh2302
What is histamine and what is its role in allergic reactions
Answers: 1
image
Biology, 22.06.2019 02:30, catycait27p5rc5p
What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen
Answers: 1
image
Biology, 22.06.2019 09:00, lukeakalucas
Where are the strongest jet streams located?
Answers: 1
image
Biology, 22.06.2019 10:40, screen7866
What is the most abundant vertebrate on earth?
Answers: 1
You know the right answer?
ACTIVITY 5 Working with Kepler's Laws
23
B
0
7. Examine Figure 5.3, which s...

Questions in other subjects: