multiple choice
Gravity is responsible for which of the following characteristics of a galaxy?
the motion of the objects within is
the size of its largest stars
its location within the universe
the color of light it emits
the motion of the objects within it
Matter with indefinite shape and volume
Options
Gravity
Dust
Gas
Galaxy
Solar system
gas
the solar system appears to have formed from a disk of ___ and ___
dust and gas
Which of the following best describes the formation of the solar system ?
The Sun ejected rocky material which formed the planets due to magnetic attraction forces.
A rotating disk of gas and dust was drawn together by the force of gravity.
One very large planetary body broke apart into several smaller planets.
Several stars of different masses cooled and formed the planets and the Sun.
a rotating disk of gas and dust was drawn together by the force of gravity
the sun and the group of planets that revolve around it
gravity
dust
gas
galaxy
solar system
solar system
the universe began as a very ____ and ____ area that ____ rapidly
small, dense, expanded
earth and its solar system are a part of which of the following galaxies?
andromeda
black eye
milky way
cartwheel
large mass of stars
gravity
dust
gas
galaxy
galaxy
Describe the shape of the orbits of the planets in the solar system as they revolve around the Sun.
the solar system consistss of the ___ and ____
sun, planets
The mass pulls down on the string as the students spin the tennis ball around the spool. If the students wish to change the model to show what would happen if the Sun had a greater gravitational pull, what change should they make?
Spin the tennis ball at an increased speed
Replace the 1 kg mass with a 2 kg mass
Tie the tennis ball with a longer string
Change the spool to a longer one
replace the 1 kg mass with a 2 kg mass
tiny particles of matter floating in space
gravity
gas
dust
galaxy
Describe the role of gravity in the solar system and in the Milky Way galaxy.
Gravity is the force that holds together the solar system and the Milky Way galaxy. It controls the orbits of planets and other objects within the solar system.
How have telescopes assisted scientists in learning about the origins of the universe?
Without telescopes, scientists would have no way of knowing that there are other planets and different galaxies. Telescopes led to scientists developing theories about the origins of the universe.
What components does the solar system appear to have formed from?
The solar system appears to have formed from a rotating disk of gas and dust drawn together by gravity.
How does gravity impact the solar system and the Milky Way galaxy?
Gravity causes the motion of the planets, stars, and galaxies. All objects are attracted to each other due to gravity and continue orbiting because of the pull of gravity.