What keeps planets in orbit?

Gravity from the sun keeps the planets in orbit

Why don't the planets collide?

The gravitational pull of the sun is different for each planet & orbit path

How were planets formed when the solar system was created?

Gravity from dust particles cused them to stick and accumulate

How did the planets get and maintain their shape?

Gravity pulled matter towards the center of the planet

The geocentric model shows...

the Earth at the center of the solar system

All planets revolve around the sun. Which planet revolves the fastest?

Mercury because it is closest to the sun

What would happen to Lisa's weight and mass if she left Venus to go to Jupiter?

Weight would increase and mass would remain the same

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Properties of the Solar System and Gravity

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Questions 13

Answers

1
What planets are known as the terrestrial planets?
The planets with moons
The inner planets
The planets without moons
The outer planets
2
Which solar system model has the sun in the middle with astronomical objects orbiting it?
Geocentric Model
Helicentric model
Neptunecentric
Suncentric
3
What keeps planets in orbit?
Gravity from the sun keeps the planets in orbit
Gravity from the planets keep the planets in orbit
Magnetic forces of the sun keep the planets in orbit
Dust
4
Why don't the planets collide?
The gravity of the sun acting on the planets with the same force
The gravitational pull of the sun is different for each planet & orbit path
The planets speed is the same in their orbits
The planets speed is different for each orbital path
5
How were planets formed when the solar system was created?
Gravity from dust particles cused them to stick and accumulate
The sun released planet as protoplanets
Gravity causes dust particles to spin and form a star
Gravity and inertia keep the planets in orbit
6
How did the planets get and maintain their shape?
As they orbit in space they are weathered down due to rolling around
Magnetic forces of the sun keep the planets round
Gravity pulled matter towards the center of the planet
The green ball
7
Out of the answer choices below, which planet has the greatest gravity?
Earth
Jupiter
Mars
Neptune
8
All planets revolve around the sun. Which planet would be the coldest?
Neptune
Jupiter
Earth
Mercury
9
The geocentric model shows...
the Earth orbiting other planets
the world revolving around you
the sun at the center of the solar system
the Earth at the center of the solar system
10
All planets revolve around the sun. Which planet revolves the fastest?
Earth because it's the most important
Mercury because it is closest to the sun
Jupiter because it is has the greatest mass
Neptune because it is the farthest
11
The different orbital paths of the planets is caused by...
speed
gravity
they all travel the same path
12
What would happen to Lisa's weight and mass if she left Venus to go to Jupiter?
Weight would decrease and mass would increase
Weight and mass would increase
Weight would remain the same and mass would decrease
Weight would increase and mass would remain the same
13
Venus has a thick atmosphere that contains greenhouse gases making it hotter than Mercury.
False
True

Properties of the Solar System and Gravity Flashcards | StudBud