2. Observe the orbit of the Moon around the Earth. Is this orbit circular? To really see if the orbit is circular measure the distance between the Moon and Earth at two different points. Is this distance the same? 3. Repeat the above for earth and a satellite. 4. Calculate the orbital speed of the Earth. You will need the time it takes for the Earth to make one complete cycle around the Sun and the distance between the Sun and the Earth. Time for one revolution in days: Time for one revolution in seconds: Distance is the circumference of a circle is 2: r is the distance between the Sun and the Earth using the equation = calculate the orbital speed: 5. More the Earth further away and state the orbital time for new distance. Does the time changes? 6. How long does it take for the Moon to rotate around the Earth? 7. Observe and describe the orbit of the moon around the Sun. 8. You can drag the green speed vector to increase or decrease it. What happens if the speed is small? What happens if the speed is large