1 / 5

North and South Poles

Delve into the mysteries of Earth's poles - from the geographic north to magnetic discrepancies and planetary axial tilts. Learn about the unique characteristics that define these regions and the science behind them.

leecampbell
Download Presentation

North and South Poles

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. North and South Poles

  2. North Pole The geographic north pole is defined as the direction pointing “up” using the right-hand rule

  3. Axial Tilt The axial tilt is the angle between the direction of Geographic North and the plane of the orbit (ecliptic). For Earth, this is 23.5 degrees.

  4. Axial Tilt Planets have very different axial tilts. Uranus lies on it side. Venus is upside down.

  5. Earth’s Magnetic Poles • Earth is like a bar magnet • This field is probably due to currents flowing in the Earth and is decreasing out at ~5% per century (decade?) • Compass Needles • A compass contains a small bar magnet for a needle. • The North pole of a magnet is the north-seeking pole - it seeks geographic North • Since North magnetic poles are repelled by North magnetic poles, this means there is a South magnetic pole at the North geographic pole

More Related