Satellites, Centripetal Force and Tangential Motion

A GCSE-level quiz relating to the Satellites section in the OCR Gateway Physics P5 module. It asks about the different types of orbit an artificial satellite can have around Earth, the orbital path of each type of satellite and how each satellite's distance from Earth affects its orbit.

HideShow resource information

1. Similarly to satellites orbiting Earth, the orbital period of a planet is longer the further away it is from the Sun. Why is this?

  • This statement is incorrect as the distance between two objects does not affect the gravitational force of attraction present between them
  • A greater gravitational force of attraction is present between the planet and the Sun.
  • A weaker gravitational force of attraction is present between the planet and the Sun.
  • Smaller planets tend to be furthest away from the Sun
1 of 15

Other questions in this quiz

2. Geostationary satellites are further away from the Earth's surface. This means that a lower gravitational force of attraction is present between the satellite and the Earth. What kind of tangential speed is required to keep this satellite in orbit?

  • A high one because too low a tangential speed will cause the satellite to fall to the Earth's surface.
  • A low one because too high a tangential speed will cause the satellite to move away, into space.
  • A high one because too low a tangential speed will cause the satellite to move away, into space.
  • A low one because too high a tangential speed will cause the satellite to fall to the Earth's surface.

3. The particular height of the orbit of a geostationary satellite ensures that:

  • the satellite is able to pass over the entire surface of the Earth, as the Earth continues to turn whilst the satellite orbits
  • the satellite's orbital period is 24 hours long, so it appears stationary when observing from the Earth's surface
  • the satellite remains stationary
  • the satellite can orbit the Earth much faster than the rate that it is turning

4. The forward motion preventing Earth's gravitational pull from making a satellite fall to its surface is called:

  • friction
  • tangential motion
  • momentum
  • centripetal force

5. As a comet nears the Sun, the speed at which it travels in its orbit increases. This is because:

  • the size of the comet increases as it gets closer to the Sun
  • as the comet nears the Sun, the gravitational force of attraction between the comet and the Sun is greater
  • as the comet nears the Sun, the gravitational force of attraction between the comet and the Sun is greater
  • when the comet is further away from the Sun, the gravitational force of attraction between the comet and the Sun is greater

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Astronomy resources »