Astro 150 - Week 12

If your mass was somehow added to a spinning merry-go-round, you and the merry-go-round will rotate ______ the merry-go-round did before you were added to it.

• faster than

• the same speed as

• slower than

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

If an outside force moves a comet from a smaller orbit to a larger orbit, we can use conservation of momentum to reason that the comet now has a ____.

• larger mass

• smaller mass

• faster orbital velocity

• slower orbital velocity

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What major planets spin on an unusual axis when compared to the other major planets?

• Mercury

• Venus

• Saturn

• Uranus

• Neptune

In which way are the 4 small ‘major’ planets the same as the larger planets in the Solar System?

• they all have similar composition

• they all are orbited by rings of debris

• they all have an atmosphere

• they all are orbited by at least one moon

The composition of Solar System objects depends mainly on _____.

• their shape (i.e., round vs not round)

• whether or not they have an atmosphere

• their distance from the Sun

• the direction of their orbit

• the direction of their rotation (i.e., spin)

Tags

NGSS.MS-PS1-1

Solar System bodies are classified as a major planet if they meet three criteria. Which of these criteria is not met by the dwarf planet, Pluto?

• They orbit only the Sun.

• They do not share their orbit with similar-sized bodies.

• They must be massive enough that their own self gravity has shaped them into a round shape.

• All three are met. Pluto is a major planet.

About how much of the solar system's total mass is in the Sun?

• 2%

• 20%

• 70%

• 98%

• 99.8%

Tags

NGSS.MS-ESS1-3

About how much of the Sun is composed of Hydrogen and Helium?

• 26%

• 72%

• 98%

• 99.8%

• 100%

Tags

NGSS.MS-PS1-1

As a slowly rotating gas cloud contracts gravitationally, it rotates faster and faster because:

• gravity causes objects to spin

• conservation of linear momentum

• conservation of spinning momentum

• gravity causes objects to orbit

Tags

NGSS.MS-PS2-2

When you fall off a ladder you gain _________ energy and lose _________ energy.

• kinetic, radiative

• potential, kinetic

• radiative, potential

• kinetic, potential

• radiative, kinetic

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5