Lesson 1 &2 from Assignment

Question 1

Relative to the age of the universe, how old is our solar system?

a) It is about 1% as old as the universe.
b) It is nearly the same age as the universe.
c) It is between about 5% and 10% as old as the universe.
d) It is about one-third the age of the universe.

Answer 1

d

Question 2

On a scale in which the distance from Earth to the Sun is about 15 metres, the distance from Earth to the Moon is

a) Small enough to fit within your hand.
b) About 30 metres.
c) About 5 metres.
d) About 1 metre.

Answer 2

a

Question 3

We can’t detect stellar parallax with naked-eye observations. Which of the following would make parallax easier to observe?

a) Speeding up Earth’s rotational motion
b) Slowing down Earth’s rotational motion
c) Speeding up the precession of Earth’s axis
d) Increasing the size of Earth’s orbit
e) Getting away from streetlights

Answer 3

d

Question 4

What is the ecliptic?

a) The constellations commonly used in astrology to predict the future
b) The Moon’s apparent path along the celestial sphere
c) The Sun’s daily path across the sky
d) When the Moon passes in front of the Sun
e) The Sun’s apparent path along the celestial sphere

Answer 4

e