18 questions
Which of the following helps explain why the planets remain in motion around the sun?
density
gravity
inertia
both gravity and inertia
Ocean tides are the result of ________.
the rotation of Earth.
the sun’s gravitational pull on Earth.
changes in Earth’s orbital position around the sun.
differences in both the sun’s and moon’s gravitational pull on Earth.
If you were using a baseball, golf ball, and basketball to model the relative motions of the Earth, Moon, and Sun, what would you have to do?
Move the golf ball around the basketball and the basketball around the baseball.
Move the basketball around the baseball and the baseball around the basketball.
Move the golf ball around the baseball and the baseball around the basketball.
Move the baseball around the golf ball and the golf ball around the basketball.
Which of the following is responsible for Earth's seasons?
the orbit of the Earth around the Sun and Earth's rotation
the orbit of the Earth around the Sun and rotation of the Sun
the rotation of the Earth and the Sun
the tilt of Earth's axis and its orbit around the Sun
Which objects make up the solar system?
a sun, planets, moons, asteroids, meteoroids, comets
stars, planets, a moon, an asteroid, meteoroids, comets
a sun, a planet, a moon, asteroids, meteoroids, comets
planets, moons, an asteroid, a meteoroid, a comet
What are two differences between planets in our solar system?
Outer planets take longer to revolve and are larger.
Outer planets take longer to revolve and are smaller.
Inner planets take longer to revolve and are smaller.
Inner planets take longer to revolve and are larger.
The further a planet is from the sun the __ it is.
colder
hotter
smaller
larger