Lesson 7 Quiz

Question 1

Exceptions to the rules about our solar system?

Answer 1

• venus
• the moon
• uranus

Question 2

Which of the following puzzles in the solar system cannot be explained by a giant impact event?

Answer 2

The orbit of Triton is opposite that of Neptune

Question 3

The solar system has two types of planets. According to nebular theory, why did terrestrial planets form in the inner solar system…:

Answer 3

only metal and rock could condense at the high temperatures of the inner solar system…father out, ice could accrete

Question 4

Many meteorites appear to have formed in the solar system’s history. How do these support our theory about how terrestrial planets formed?

Answer 4

Their compostition is just what we’d expect

Question 5

Suppose that you start with 1kg of a radioactive substance that has a half life of 10 years. What will be true after 20 years?

Answer 5

After 10 years, only half of the original kilograms will remain. After that, 1/4 will remain.