Galaxies
What is a galaxy?
A collection of gas, dust, and solar systems
What is the spinning on earth's axis called?
roatation
the different shapes of the moon you see are called
phases
What causes the change of the location of constellations seen from one place at the same time each night?
a. the rotation of Earth
b. Earth orbital revolution
c. Earth's rotation and orbit
d. they do not change under these conditions
b
What is in our solar system?
sun, planets, moons, other small objects
what are the three types of galaxies
spiral, elliptical, irregular
What is the imaginary line that runs from the north pole to the south pole?
axis
What is the side of the moon called that we never see
far side or dark side
Which characteristic of object, if doubled, has the greatest effect on the gravitational force between them?
a. their speed of motion
b. their masses
c. their distance from each other
d. their inertia
c
What does AU stand for?
Austonomical units
Which galaxies have stars consistently through out
ellipitical
How long does it take earth to rotate?
24 hours
Why do the moon phases change?
how much of the moon is lit up by the sun
Which celestial object is the movement of a comet most similar to?
a. star
b. meteor
c. moon
d. planet
D
What is earth made mostly of?
rock
Which kind of galaxy do we live in and what is its name?
Spiral, Milky way
What causes season?
The tilt of the axis
What is the position of the moon during a new moon?
sun, moon then earth
If you are standing at a beach on Earth at the same time that the shadow of the moon falls across your location, what event would you be able to witness at that time?
a. solar eclipse
b. lunar eclipse
c. low tide
d. full moon
What are loose balls of ice and rock called?
Comets
How do we know we live in a spiral galaxy?
The night sky aligns with other galaxies in the universe that we know are spirals
What is the tendency of an object to resist change?
Interia
What is a spring tide?
the most significant difference between low and high tides
If the Earth were suddenly removed from the solar system, what would happen to the moon?
a. The moon would fall towards Earth's former location
b. The moon would move straight out of the solar system
c. The moon would continue to move in its current orbit
d. The moon would move into a new orbit under the influence of the sun
d
How are planets formed?
around the sun, bits of rock, ice and gas began to pull together by the force of gravity