Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Homework Quiz 3
| Question | Answer |
|---|---|
| What is the approximate degree of your thumbnail? | 2° |
| What is the approximate degree of your little finger? | 1° |
| What is the approximate degree of your fully spread hand at arm's length? | 20° |
| What two stars point to Polaris? | Merak and Dubhe |
| What does altitude chart? | A stars angle above the horizon |
| What does azimuth chart? | A stars angle on the horizon just below the star, measured east to north |
| How frequently can you chart stars movements from east to west? | Every fifteen minutes |
| What is frequently called the "Morning" or "Evening" star? | Venus |
| What is the ecliptic? | The path the sun travels from east to west across the celestial sphere |
| What causes the seasons? | The Earth's tilt |
| When it is winter in Australia, what season is it in the United States? | Summer |
| When is the Summer Solstice? | Around June 21st |
| When is the Winter Solsitce? | Around December 21st |
| When is the Autumnal Equinox? | Around September 22nd |
| When is the Vernal Equinox? | Around March 20th |
| When is the sun at the highest point in the sky? | During the Summer Solstice |
| When does the sun reach the most Southern point on the celestial sphere? | During the Winter Solstice |
| When does the sun cross the celestial equator on its way south? | During the Autumnal Equinox |
| When does the sun cross the equator on its way north? | During the Vernal Equinox |
| At what degree is the sun located during the Summer Solstice? | 23.5° |
| At what degree is the sun located during the Winter Solstice? | -23.5° |
| When does the sun cross the celestial equator? | During the equinoxes |
| At what degree is the sun located during the equinoxes? | 0° |
| How long after the Summer Solstice does it take for the hottest day of the year to occur? | Six weeks |
| How does the sun's position on the horizon change throughout the course of a year? | East to West, then north until the Autumnal Equinox |
| The suns position goes East to West until it goes North during the _________ __________? | Autumnal Equinox |
| What is precession? | The wobble of the earth due to the moon's gravitational pull |
| How long does precession take? | 26,000 years |
| Today the "North Star" is? | Polaris of Ursa Major |
| What will the "North Star" be in 4000 B.C? | Thuban of Draco |
| What will the "North Star" be in 8000 A.D? | Aldermin of Cepheus |
| What will the "North Star" be in 14000 A.D? | Vega of Lyra |
| What does the meridian divide? | East from West on the celestial sphere |
| A.M stands for? | Ante Meridian |
| P.M stands for? | Post Meridian |
| How long is a sidereal day? | 23 hours and 56 minutes |
| How long is a solar day? | 24 hours |
| How long does it take for the Earth to rotate 360°? | 24 hours |
| What is used as reference for a sidereal day? | The stars |
| What is used as a reference for a solar day? | The sun |
| What is universal time? | A twenty-four hour system |
| Universal time has a latitude degree of | 0° |
| Where can a day ranging from 0-24 hours of sunlight occur? | North of the arctic circle of 65.5° |
| Where can there be equal day and equal night? | On the equator |
Created by:
alisha-medusa
Popular Earth Science sets