1 / 12

Tides

Tides. EW Chapter 4.2 Pages 123-126. Cause of Tides Page 123. What are Tides? Describe the 2 types of Tides. What objects and force cause Tides? Draw a picture of the location of the tidal bulges like the one on Page 123. Cause of Tides Page 123. What are Tides?

zurina
Download Presentation

Tides

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. Tides EW Chapter 4.2 Pages 123-126

  2. Cause of TidesPage 123 • What are Tides? • Describe the 2 types of Tides. • What objects and force cause Tides? • Draw a picture of the location of the tidal bulges like the one on Page 123.

  3. Cause of TidesPage 123 • What are Tides? • Daily rise and fall of water on coastlines • Describe the 2 types of Tides. • High tide is when water reaches its highest point, Low tide the lowest point • What objects and force cause Tides? • The gravity from the moon causes tides (Sun, too) • Draw a picture of the location of the tidal bulges like the one on Page 123.

  4. Daily Tidal CyclePage 124 • How often do tides occur? • What factors affect the height of the tide?

  5. Daily Tidal CyclePage 124 • How often do tides occur? • High tides occur about ever 12 hours & 25 minutes • What factors affect the height of the tide? • Landforms (capes, islands), depth and speed of water.

  6. Cape Cornwall, UK

  7. Cape Canaveral, FL

  8. Tidal Cycle124-125 • What is Spring tide? • Draw a picture of the alignment of the Earth, Moon & Sun to illustrate. • What is Neap tide? • Draw a picture to illustrate.

  9. Tidal Cycle124-125 • What is Spring tide? • Greatest range between low & high tide • Draw a picture of the alignment of the Earth, Moon & Sun to illustrate. • What is Neap tide? • Least difference between high & low tide • Draw a picture to illustrate.

  10. Tidal Energy125-126 • Explain how tides can be used to create electricity. • Why is this system not always useful? • If you were the captain of a ship, why would it be useful to know the time of the tides?

  11. Tidal Energy125-126 • Explain how tides can be used to create electricity. • During high tide, water floods into a basin. As the water retreats during low tide, it spins turbines to produce electricity • Why is this system not always useful? • Only works in locations where tide difference is large and energy must be stored for when needed.

  12. Tidal Energy125-126 • If you were the captain of a ship, why would it be useful to know the time of the tides? • So you know when a port is / is not accessible and do not run aground

More Related