* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Module 7 Developmental task - Number
International Ultraviolet Explorer wikipedia , lookup
History of astronomy wikipedia , lookup
Equation of time wikipedia , lookup
Discovery of Neptune wikipedia , lookup
Aquarius (constellation) wikipedia , lookup
Geocentric model wikipedia , lookup
Astrobiology wikipedia , lookup
Rare Earth hypothesis wikipedia , lookup
Tropical year wikipedia , lookup
Exoplanetology wikipedia , lookup
History of Solar System formation and evolution hypotheses wikipedia , lookup
Solar System wikipedia , lookup
IAU definition of planet wikipedia , lookup
Planets beyond Neptune wikipedia , lookup
Dialogue Concerning the Two Chief World Systems wikipedia , lookup
Definition of planet wikipedia , lookup
Late Heavy Bombardment wikipedia , lookup
Formation and evolution of the Solar System wikipedia , lookup
Astronomical unit wikipedia , lookup
Satellite system (astronomy) wikipedia , lookup
Planetary habitability wikipedia , lookup
Extraterrestrial life wikipedia , lookup
Module 7: Developing the personal maths skills of teachers and assessors Development task Number Academic context The solar system Eight planets rotate the Sun in our solar system – our Earth being the third planet from the Sun. The planets vary in size – the smallest, Mercury, has a radius of only 2 439 km, whereas the largest planet, Jupiter, has a radius more than 70 000 km at its equator. 1. Using the data sheet and the formulae below, calculate the volume and mass of each planet and compare these to the Earth. State any assumptions you’ve made in your calculations. Comment on your findings. 2. The speed of light is approximately 300 000 km/s. Use this to compare the shortest time it takes for light to travel from each of the planets to an observatory on Earth. State any assumptions that you’ve made. Learning and Skills Improvement Service Page 1 Data sheet Mean Distance from Sun (AU*) Sidereal period of orbit (years) Mean Orbital Velocity (km/sec) Orbital Eccentricity Inclination to ecliptic (degrees) Equatorial Radius (km) Polar Radius (km) Mean density (g/cm³) Body rotation period (hours) Tilt of equator to orbit (degrees) Number of observed satellites Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune 0.3871 0.24 47.89 0.206 7.00 2439 same 5.43 1408 2 0 0.7233 0.62 35.04 0.007 3.40 6052 same 5.25 5832 177.3 0 1 1 29.79 0.017 0 6378 6357 5.52 23.93 23.45 1 1.524 1.88 24.14 0.093 1.85 3397 3380 3.95 24.62 25.19 2 5.203 11.86 13.06 0.048 1.30 71490 66854 1.33 9.92 3.12 >28 9.539 29.46 9.64 0.056 2.49 60268 54360 0.69 10.66 26.73 30 19.19 84.01 6.81 0.046 0.77 25559 24973 1.29 17.24 97.86 24 30.06 164.79 5.43 0.010 1.77 25269 24340 1.64 16.11 29.6 8 (*AU = Astronomical Units. One AU = 1.5 x 108 km) Useful formulae: Learning and Skills Improvement Service Page 2