Edexcel GCSE (9-1) Astronomy, Topic 4: Time and the Earth-Moon-Sun Cycles (summary) скачать в хорошем качестве

Edexcel GCSE (9-1) Astronomy, Topic 4: Time and the Earth-Moon-Sun Cycles (summary)

Topic 4 - Time and the Earth-Moon-Sun Cycles Specification: • Understand the difference between sidereal and synodic (solar) days • Understand the role of the Sun in determining Apparent Solar Time (AST) • Understand the role of the Mean Sun in determining Mean Solar Time (MST) and Local Mean Time (LMT) • Be able to use: 🡒 the Equation of Time = Apparent Solar Time (AST) − Mean Solar Time (MST) • Understand the annual variation of the Equation of Time 4a • Understand the causes of the annual variation of the Equation of Time • Understand how to determine the time of local noon using shadows, including use of a shadow stick • Understand the structure and use of sundials • Understand the lunar phase cycle • Understand the difference between sidereal and synodic (solar) months • Understand the annual variation in times of sunrise and sunset • Understand the astronomical significance of equinoxes and solstices • Understand the variation in the Sun’s apparent motion during the year, particularly at the equinoxes and solstices • Understand the relationship between sidereal and synodic (solar) time • Understand the difference in local time for observers at different longitudes • Understand the use of time zones • Be able to use data related to time zones • Know that mean time at any point along the Prime Meridian is defined as Greenwich Mean Time (GMT), which is the same as Universal Time (UT) • Be able to use shadow-stick data and the Equation of Time to determine longitude • Understand the principles of astronomical methods for the determination of longitude, including the lunar distance method • Understand the principle of the horological method for the determination of longitude (Harrison’s marine chronometer) (knowledge of internal working of chronometers not required) ☕️ Like what I'm doing? Consider supporting me: https://physicswithkeith.com/support-me/ 🔗Link to the Facebook Group:   / freephysicstuition   🔗Link to my website https://physicswithkeith.com 🙏 Please don't forget to subscribe if you want to get updates when I release more videos: https://www.youtube.com/physicswithke...