Other Objects in the Solar System — Unit test

Question 1

Why did scientists struggle for thousands of years to accurately describe the solar system?

Revolt · Accepted Answer

The planets appeared to move backward in the sky occasionally.

Question 2

If astronomers discovered a new inner planet in the solar system, which characteristic would it most likely have?

Revolt · Accepted Answer

fast revolution

Question 3

Which list correctly orders the outer planets from least to greatest distance from the Sun?

Revolt · Accepted Answer

Jupiter, Saturn, Uranus, Neptune

Question 4

Which diagram correctly describes the changes that occur as a small piece of rock falls from space and hits the Earth?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/evresources/53ebf92cc40306b78a8206019e3b0a18.png

Question 5

The gravitational force between two asteroids is 6.2 × 108 N. Asteroid Y has three times the mass of asteroid Z.

Revolt · Accepted Answer

1.1 × 1016 kg

Question 6

What term generally describes small chunks of rocks and debris in space?

Revolt · Accepted Answer

meteoroids

Question 7

The acceleration due to gravity on Mercury is 3.7 m/s2, which is about six times the acceleration due to gravity on Pluto.

Revolt · Accepted Answer

An object weighs about one-sixth as much but has the same mass on Pluto as on Mercury.

Question 8

Whose data did Kepler use to construct the laws of planetary motion?

Revolt · Accepted Answer

Brahe’s

Question 9

Which planet in the solar system is least dense?

Revolt · Accepted Answer

Saturn

Question 10

Which characteristic do Mercury and Mars share?

Revolt · Accepted Answer

rocky surfaces

Other Objects in the Solar System — Unit test Answers