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Unit 4: Our Solar System - 7th/Adv Flashcards | StudBud
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Unit 4: Our Solar System - 7th/Adv
Unit 4: Our Solar System - 7th/Adv
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Exploring Space TEKS review
Flashcards
17 cards
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Questions
17
Answers
1
What is the habitable zone?
The area around a star that is the closest
The area around a planet where a moon orbits
The area around a star that can support liquid water
The area around a star that has gravity
2
What does proximity mean?
time
weight
nearness
brightness
3
There's evidence that Mars had liquid water at one time. Besides water, what would Mars need to be habitable?
protection from solar radiation
faster spacecraft
a way to simulate gravity
a way to transport food from Earth
4
What is most likely an object that is made of gas, dust, and ice and develops a tail as it approaches the Sun?
star
meteoroid
asteroid
comet
5
What factor below is necessary for a planet to be habitable?
helium in the atmosphere
fast spacecraft
water vapor
ozone layer
6
Why do planets travel in a curved path instead of a straight line?
Gravitational attraction between a planet and its moons
Gravitational attraction between all the planets
Electromagnetic attraction between the sun and planet
Gravitational attraction between the sun and planet
7
What is the BEST explanation that planets orbit the Sun?
The outer planets push all the other planets around the Sun.
The Sun is the most massive object in the solar system
Neptune is too far away for other planets to orbit it.
The inner planets combine their gravity to attract the outer planets.
8
What is the relationship between gravity and mass?
As the mass of an object increases, the gravity will remain constant.
As the mass of an object inceases, its gravitational force decreases
There is no relationship between gravity and mass.
As the mass of an object increases, its gravitational force increases.
9
Earth is moving forward at a constant speed. What keeps Earth in orbit around the Sun instead of moving through space?
The Sun's gravity acting on Earth
There are no forces acting on Earth-space is empty
Earth's gravity on the Moon
The gravity of all the planets pushing Earth toward the Sun
10
Which is a factor of habitability that supports photosynthesis and therefore life on Earth?
The presence of water on Earth
Earth’s proximity to the sun
The makeup of Earth’s atmosphere
all of the above
11
Which of the following best describes the inner planets?
Terrestrial, close to the Sun
Gas planets, far away from the Sun
Terrestrial, far away from the Sun
Gas planets, close to the Sun
12
What gasses does an atmosphere need to be habitable
carbon dioxide, nitrogen
oxygen, nitrogen, carbon dioxide
oxygen, helium, neon
nitrogen, hydrogen, helium
13
Which object has a stronger gravitational force?
Neither sphere has a gravitational force.
The red sphere
The blue sphere
The spheres have equal mass.
14
Why does it take the outer planets so long to orbit the Sun?
They don't have atmospheres.
Their huge mass slows them down.
They are much farther away than the inner planets.
Their rotation period interferes with their orbits.
15
What 2 factors cause a planet to stay in orbit around the Sun?
The gravity of the planet and the forward motion of the Sun
The gravity of the Sun and the forward motion of the Moon
The electromagnetic energy of the Sun and the gravity of the planet
The gravity of the Sun and forward motion of the planet
16
Which of the following lists the objects correctly from smallest to largest relative size?
Sun, planet, solar system, galaxy, moon
moon, planet, sun, solar system, galaxy,
planet, solar system, sun, galaxy, moon
planet, galaxy, solar system, moon
17
From smallest to largest, what is the correct order of the objects in space?
planet, galaxy, star, solar system, universe
planet, star, solar system, galaxy, universe
star, planet, solar system, galaxy, universe
planet, solar system, star, universe, galaxy
