This is anger key to the Module 2 Exercise PDF

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This is anger key to the Module 2 Exercise...

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SCIE 4004 Mod. 2 Exercise

Grade :

0 (most questions not answered)

.5 (some questions not answered)

1 (all questions answered thoroughly)

Astronomy Ranking Task: Kepler’s Laws – Orbital Motion Exercise 1 Description: The figure below shows four locations (A – D) of an asteroid during its elliptical orbit around the Sun.

According to Newton,  where is the force between the Sun and the asteroid greatest? D  where is the force between the Sun and the asteroid weakest? B

Ranking Instructions: Rank the speed (from fastest to slowest) that the asteroid would have at each of the four locations. Ranking Order: Fastest 1 D 2 C 3 A 4 B Slowest Or, the orbital speed at each location would be the same. ________ (indicate with check mark). Carefully explain your reasoning for ranking this way: When there is a greater force of attraction object will speed up as opposed to when there is less force. Since at point D the asteroid has the greatest force it will move the fastest.

The materials above are collectively the work of David Hudgins (Rockhurst University), Kevin Lee (University of Nebraska), and Edward Prather (University of Arizona). They may be used freely for any non-profit educational purpose – other uses require permission. Contributions to the programming were made by Renee Augustyn, Andy Frederick, Keith Nickum, and Chris Siedell. The work is supported by an NSF grants nos. 0737376 and 0715517, a CCLI Phase III Grant for the Collaboration of Astronomy Teaching Scholars. (CATS).

SCIE 4004 Mod. 2 Exercise

Astronomy Ranking Task: Gravity Exercise 2 Description: In the picture below, the Earth-Moon system is shown (not to scale) along with five possible positions (A - E) for a spacecraft traveling from Earth to the Moon. Note that position C is exactly half-way between Earth and the Moon.

A. Ranking Instructions: Rank (from greatest to least) the strength of the gravitational force at positions A - E exerted by the Moon on the spacecraft (you can ignore the Earth’s gravitational pull). Ranking Order: Greatest 1 E 2 D 3 C 4 B 5 A Least Or, the gravitational force exerted at each position is the same. _________ (indicate with a check mark) Carefully explain your reasoning for ranking this way: The gravitational force will be the strongest when the spacecraft is closest to the moon, Thus at point E the spacecraft will have the strongest gravitational force

B. The force on the spaceship exerted by both the Earth and the Moon:  

If the spacecraft is located at Point C, which object has a greater pull on it, the Earth or the Moon (picture a tug of war)? Earth Why? Objects with greater mass have a stronger force of gravity between them.



If the spacecraft is located at Point C, and the engines are out and initially it's not moving, which way will the spacecraft eventually begin to drift, toward the Earth or the Moon? Earth



Can you pick, very roughly, a point where the force of the Earth on the spacecraft and the force of the Moon on the spacecraft cancel each other out and the ship remains stationary? Point D

The materials above are collectively the work of David Hudgins (Rockhurst University), Kevin Lee (University of Nebraska), and Edward Prather (University of Arizona). They may be used freely for any non-profit educational purpose – other uses require permission. Contributions to the programming were made by Renee Augustyn, Andy Frederick, Keith Nickum, and Chris Siedell. The work is supported by an NSF grants nos. 0737376 and 0715517, a CCLI Phase III Grant for the Collaboration of Astronomy Teaching Scholars. (CATS)....