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6. The further away a planet in orbit is...

  • the less speed it needs
  • the more speed it needs

7. What provides the centripetal force that keeps planets and satellites moving in their orbits?

  • gravity
  • velocity

8. How long does a geostationary orbit last for?

  • 12mounth
  • 4 weeks

9. What is the moment of a force?

  • the turning effect of a force
  • the precise time at which it happened
  • the point the force stems from

10. Moment is measured in Newton metres (Nm)?

  • True
  • False

11. Which is the correct equation for working out the Moment?

  • force x perpendicular distance from pivot to action
  • perpendicular distance from pivot to action x the pivot angle
  • force / pivot angle

12. If the object is at equilibrium....The sum of all the clockwise moments about any point=

  • the sum of all the anticlockwise moments about that point
  • the product of distance and effort force
  • the effort force

13. When a suspended object is at equilibrium, its centre of mass is directly beneath the point of suspension

  • True
  • False

14. The bigger the base of an object....

  • the less likely it is to stand more than one way up
  • the more stable the object
  • the taller the object

15. When an object is moving in a circle at a constant speed...

  • it is accelerating continuously and a centripetel force is present
  • there is a centripetel force
  • the circle gets gradully smaller

16. As the mass or speed of the object moving in a circle at a constant speed increases.....

  • the centripetel force increases
  • the centripetel force decreases