Gravity and Orbits – physics lesson P7b (Astronomy)

Full lesson PowerPoint to teach a lesson on Gravity and Orbits. It covers factors that affect the strength of the gravitational field, the orbits of moons, planets, comets and artificial satellites, how changing the speed of an orbiting body affects the radius of its orbit and how the radius of a stable orbit is affected by the orbital speed. Students will also compare the orbits of planets, moons and comets along with finding out some uses for artificial satellites.