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- 1. Multiple Choice
A satellite is orbiting around Earth. What would happen if Earth's gravity suddenly disappeared?
The satellite would move into space in a straight line.
The satellite would continue to orbit Earth.
The satellite would stop moving.
- 2. Multiple Choice
Which object orbits object X?
Object A
Object B
Object C
- 3. Multiple Choice
What is an example of a tool astronomers use to make discoveries in space?
telescopes
rovers
satellites
martians
space shuttle
- 4. Multiple Choice
What is responsible for keeping planets in orbit around the sun?
density
gravity
photosynthesis
- 5. Multiple Choice
The planets orbit around the sun because the sun has the greatest ____________.
weight
diameter
mass
- 6. Multiple Choice
Which happened first to form the solar system?
Orbital paths began to form.
Particles began to clump together in the orbital paths.
There was a large cloud of particles and dust.
- 7. Multiple Choice
Which happened last to form the solar system?
We discovered the sun and planets.
Orbital paths began to form.
Some particles began to attract to one another and clump together.
- 8. Multiple Choice
Using the table , calculate the difference in size between Earth and Mars.
7,877 km
5,964 km
36,772 km
- 9. Multiple Choice
Using this chart, how many Saturns can fit in the sun's diameter?
11.4 Saturns
277 Saturns
113 Saturns
- 10. Multiple Choice
What does this model of the solar system show?
how the planets orbit the sub
the relative size of each planet
the gravitational force exerted by each planet
- 11. Multiple Choice
What keeps the moon in orbit around Earth?
tension
magnetism
gravity
- 12. Multiple Choice
Which statements correctly describe a difference in our solar system's inner planets and outer planets due to gravitational effects?
inner planets are larger
outer planets are larger
inner planets are more spread apart
outer planets are more spread apart
- 13. Multiple Choice
The dotted lines in the picture show orbital paths of objects. Which statement is true about all of the orbits shown?
All objects move in circular orbits
The size of an object determines the size of its orbit
The size of an object and the object it orbits are equal
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