# Orbits And Gravity Quiz

9 Questions | Total Attempts: 291  Settings  .

Questions and Answers
• 1.
What is Gravity?
• A.

Gravity is the force that causes smaller bodies to accelerate towards the surface of a larger body.

• B.

Gravity is the force that causes smaller bodies to accelerate away from the surface of a larger body.

• C.

Gravity is the force that causes larger bodies to accelerate towards the surface of a smaller body.

• 2.
What are orbits?
• A.

A circular path around an object of any size

• B.

A set distance and path that only planets take around the Sun.

• C.

A set distance and path that a smaller celestial body takes around a bigger celestial body

• 3.
Is the following TRUE or False? If a celestial body that was 500 km diameter was close to a celestial body that was 45677999 km diameter in space, the bigger object would form an orbit around the smaller body.
• A.

True

• B.

False

• 4.
How do satellites remain in space for decades without being lost?
• A.

They are programmed to stay at one single spot and use rockets to stay in the same position

• B.

They form an orbit around a bigger object such as the Earth and remain in in that orbital distance away from the surface of the planet forever.

• C.

They are placed there by rockets and staffed by Astronauts who pilot them to required locations

• 5.
What are the factors that influence orbits (Tick all the boxes that are correct)
• A.

Size of the celestial bodies involved

• B.

The force of gravity

• C.

The temperature of the celestial bodies involved

• D.

The speed that the celestial bodies are moving at

• 6.
What is the value if the force of gravity on Earth?
• A.

9.8 m/s/s

• B.

12 m/s/s

• C.

1 m/s/s

• 7.
Is the value if g on Venus likely ti be the same as the value of Earth? Why or Why Not?
• A.

Yes because the force of gravity is the same on every planet

• B.

No because the force of gravity depends on the masses of the objects involved

• C.

Yes because the force of gravity is determined by the Sun which is the same star for the Earth and for Venus

• 8.
What are moons and how are they formed?
• A.

Moons are mini planets that are too small to be classified as planets themselves

• B.

Moons are natural satellites that form from debris from planetary collisions

• C.

Moons are small offshoots from the Sun that form natural satellites around planets

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