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Earth In Space And Gravity
Test Description: Practice of concepts regarding Earth's motion in space and gravity.
Instructions: Answer all questions to get your test result.
1) There are about twelve hours of daytime and twelve hours of night during the:
A
equinox
B
summer
C
winter
D
solstice
2) Mercury has a longer period of rotation than Earth because:
A
it's spinning slower
B
it's further from the sun
C
it's closer to the sun
D
it's spinning faster
3) The sun is always leaning toward the ___________________ in the Norther hemisphere.
A
east
B
north
C
west
D
south
4) The sun is sometimes directly overhead _________________________.
A
in Missouri
B
at the poles
C
at the equator
D
everywhere
5) You would weight less on Mars than on Earth because __________________________.
A
Mars spins more slowly than Earth
B
Mars is far away from Earth
C
Mars has more mass than Earth
D
Mars has less mass than Earth
6) The summer solstice is:
A
the middle of summer
B
the end of summer
C
the longest day of the year
D
the shortest day of summer
7) A planet's revolution is _________________________________________.
A
its path around the sun
B
the length of its day
C
one complete spin around its axis
D
when it revolts against the laws of the universe, resulting in mass chaos
8) Newton's Law of Universal Gravitation states that gravity depends on:
A
force and friction
B
mass and distance
C
mass and force
D
force and motion
9) Days are shorter in the winter because:
A
Earth is always rotating
B
the sun is tired
C
Hades kidnapped Persophone
D
the tilt of Earth's axis
10) ______________________ makes planets round.
A
revolution
B
orbit
C
gravity
D
rotation
11) One spin of a planet around its axis:
A
revolution
B
orbit
C
gravity
D
rotation
12) A meteoroid is NOT round because ______________________.
A
it isn't going around the sun
B
it's too massive to be contorted into a sphere by gravity
C
it isn't spinning fast enough
D
it doesn't have enough mass
13) Mercury's period of revolution is shorter than Earth's because it is:
A
it is spinning more slowly than Earth
B
it is further from the sun than Earth
C
it is closer to the sun than Earth
D
spinning faster than Earth
14) When is the sun is directly overhead in Lebanon, MO?
A
every day at noon
B
the spring equinox
C
the summer solstice
D
never
15) Proportionately, if Earth were the size of a basketball, what size would the moon be?
A
tennis ball
B
bowling ball
C
soft ball
D
golf ball
16) You will weigh more on a planet with _____________________ mass than Earth.
A
more
B
less
C
the same
D
equal
17) A planet's period of revolution is:
A
the end of its revolution
B
the amount of time it takes to complete a single trip around the sun
C
the time during which it is revolting against the laws of the universe
D
the moment when its direction of revolution reverses
18) Why didn't the astronauts on the moon fall back to Earth?
A
astronauts tied themselves to the surface of the moon with stakes and rope
B
the astronauts were very close to the moon and very far from Earth
C
the moon is spinning much faster than Earth, creating more gravity
D
the moon has more mass than Earth
19) Why does the sun rise in the East and set in the West?
A
The Earth is rotating toward the East
B
The Earth revolves toward the East
C
It is revolving around the Earth in a Westward direction.
D
The moon sets in the East, allowing the sun's solar radiation to reach Earth
20) Black holes have an enormous amount of _______________________.
A
potatoes
B
weight
C
volume
D
mass
*select an answer for all questions
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