Use these questions to test your understanding. If you get them wrong, you will be linked back to the relevant part of the notes.
Be sure you study them thoroughly (don't just get a quick fix for your mistake) so your overall understanding is improved.
1. People often refer to the side of the moon away from the earth as the "dark side". Is this term correct?
2. What is the seasonal event for us when the sun is highest in the sky at noon for people in Sydney Australia?
a. summer solstice b. autumnal (fall) equinox c. winter solstice d. vernal (spring) equinox
3. If you were on the moon, could you observe total eclipses of the sun by the earth?
4. If you were on the moon, could you observe annular eclipses of the sun?
5. If the moon is rising during sunset, what phase is it in?
a. new b. first quarter c. full d. last quarter
6. If the moon is rising during sunset, what phase will it be one week later?
a. new b. first quarter c. full d. last quarter
7. If you were on the moon and the moon were full as viewed from earth, what phase would the earth be at?
a. new b. first quarter c. full d. last quarter
8. Why doesn't a total lunar eclipse occur every month?
b. Because we are not necessarily pointed toward the moon when they occur
c. Because of the tilt of the orbit of the moon relative to the orbit of the earth around the sun
d. Because some of them occur on the far side of the moon
9. A month was set to be the time for
a. the earth to rotate on its axis
c. the sun to rotate on its axis
e. the moon to orbit the earth
10. When it is winter in Tucson, it is
b. summer in Australia (southern hemisphere)
11. The seasons are primarily due to
a. the earth getting closer to and farther away from the sun as it goes arount its orbit
d. changes in the output of the sun
e. large scale movements of air
12. An ad claiming that a product is light-years ahead of its time does not make sense because
a. a light-year is so large that a product could not possibly be so advanced.
b. light-years only apply to light.
c. it doesn’t say the number of light-years.
d. it uses “light-years” to talk about time, but a light-year is a unit of distance.
e. it gives no comparison with similar products
13. When we look at a galaxy that is 100 million light years away, the light we see
a. was created 100 million years ago, in the heyday of the dinosaurs
b. is as it was 100 million light-years ago
c. has dimmed by 100 million times in reaching us
d. will be spread over the next 100 million years
e. looks the same as it would have 100 million years ago