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# Ch 11 Earths rotation and revolution

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### Ch 11 Earths rotation and revolution

1. 1. EARTHS ROTATION AND REVOLUTION
2. 2. Earth’s Rotation• Rotation is the spinning of the Earth on its axis.• The time for one rotation is 24 hours.• The speed of rotation 24,855 miles/24 hr or 1,038 miles/hr Click image to view Earth’s rotation.
3. 3. Earth’s Revolution• A revolution occurs as the earth moves around the sun.• Time for one revolution = 365 1/4 days = 8,766 hours• The speed of earth’s revolution is about 18 miles per second.
4. 4. Earth’s Revolution
5. 5. Earth’s Orbit• The path an object takes as it revolves around another object.
6. 6. Around and Around We Go• Every second, that you sit in this classroom, the Earths orbital motion carries you about 18 miles through space.
7. 7. 1. The Earth spinning on its axis. Rotation Revolution2. Going around a larger body. Rotation Revolution Revolution3. 24 hours. Rotation Revolution4. Causes the Earth’s seasons. Rotation Revolution5. Creates a year. Rotation Revolution6. The moon going around Earth. Rotation Revolution
8. 8. Identify the motion being shown in each of thesepictures. Each team must write their answers for each figure in the form of a question. Figure #1 Rotation Revolution Planet Figure #2 Earth Rotation Revolution
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