Podcast
Questions and Answers
If Earth's gravity suddenly disappeared, what would MOST likely happen to the atmosphere?
If Earth's gravity suddenly disappeared, what would MOST likely happen to the atmosphere?
- The atmosphere would become denser, causing temperatures to decrease.
- The atmosphere would dissipate into space. (correct)
- The atmosphere would remain the same, as it is independent of gravity.
- The atmosphere would compress, leading to increased air pressure at the surface.
Why do tides occur on Earth?
Why do tides occur on Earth?
- Primarily due to underwater volcanic activity that displaces large volumes of water.
- Due to the Earth's rotation and its effect on ocean currents.
- Primarily due to the gravitational pull of the sun and the moon on Earth's bodies of water. (correct)
- Due to the changes in atmospheric pressure affecting sea levels globally.
If a new, very massive planet were introduced into our solar system, what effect would this MOST likely have on the existing orbits of other planets?
If a new, very massive planet were introduced into our solar system, what effect would this MOST likely have on the existing orbits of other planets?
- It would slightly alter the orbits of the planets due to its gravitational pull. (correct)
- It would cause all planets to move closer to the sun.
- It would stabilize the existing orbits, making them perfectly circular.
- It would have no effect, since each planet's orbit is fixed.
How does gravity influence the formation of rain?
How does gravity influence the formation of rain?
What is the MOST significant risk posed by space junk in Earth's orbit?
What is the MOST significant risk posed by space junk in Earth's orbit?
A satellite is launched into space with the intention of orbiting Earth. What force is primarily responsible for keeping the satellite in orbit?
A satellite is launched into space with the intention of orbiting Earth. What force is primarily responsible for keeping the satellite in orbit?
What distinguishes a space station from a satellite?
What distinguishes a space station from a satellite?
If the mass of the Earth were to double, but its size remained the same, what would be the MOST likely effect on gravity at the Earth's surface?
If the mass of the Earth were to double, but its size remained the same, what would be the MOST likely effect on gravity at the Earth's surface?
Flashcards
What is gravity?
What is gravity?
The force that attracts objects with mass towards each other.
Why do planets orbit?
Why do planets orbit?
Objects in space orbit each other due to the force of gravity.
What happens without gravity?
What happens without gravity?
Without gravity, objects would float off into space.
Why does rain fall?
Why does rain fall?
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What are tides?
What are tides?
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What is a satellite?
What is a satellite?
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What is a space station?
What is a space station?
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What is space junk?
What is space junk?
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Study Notes
- Gravity affects people and surroundings in different ways
Gravity Keeps Things From Floating Off Into Space
- Gravity brings you back to the ground after you jump
- Gravity is the reason we can breathe
- Without gravity, you and other things would float off into outer space
Important Cycles and Processes Happen Because of Gravity
- Rain falls down from the sky because of gravity
- Snow and hail also fall due to gravity
- Without gravity, snow, hail and rain would float instead
- Soil absorbs nutrients because of gravity, enriching it
Extend Your Understanding (Eco-Friendzee)
- Outer space contains debris, or space junk
- This includes tools, satellites, and rocket parts
- Collisions create more debris
- Space organizations are designing better satellites to prevent space trash
- Clean-ups have been considered but are costly
Objects in Space Revolve Around Each Other Because of Gravity
- Earth revolves around the sun
- The moon moves around earth
- This all happens due to gravity
- Without gravity, the moon and Earth would float off
- Satellites and space stations orbit Earth because of gravity
Extend Your Understanding (Word Unlock)
- A satellite is launched into space for communication or gathering information
- A space station is used for research or manned operation
Gravity Causes the Rise and Fall of Tides
- Tides are the rise and fall of sea levels
- Tides are due to the gravitational pull of the sun and moon on Earth's water
- Gravity is the primary force controlling activities and interactions with heavenly bodies
- Without gravity, life would be entirely different
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