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6. What can be done to increase the stability of an object?

  • Increase the weight at the bottom of the object
  • Increase the weight at the top of the object
  • Increase the weight all over

7. What else can be done to increase the stability of an object?

  • Have a wider top
  • Have a smaller base
  • Have a wider base
  • Have a wider base and top

8. Which of these has the biggest centripetal force?

  • Mass of ball = 2Kg Speed of ball = 13m/s Radius of circle = 10cm
  • Mass of ball = 0.3Kg Speed of ball = 8m/s Radius of circle = 0.3m
  • Mass of ball = 100g Speed of ball = 5m/s Radius of circle =15cm
  • Mass of ball = 3g Speed of ball = 13m/s Radius of circle = 1m

9. What provides the centripetal force for planets and satellites?

  • Tension
  • Gravitational force
  • Centre of mass
  • Friction
  • Normal

10. How can the force of gravity be increased?

  • Increase the pressure
  • Decrease the mass of the object and decrease the distance
  • Increase the mass of the object and increase the distance?
  • Increase the mass of the object and decrease the distance
  • Decrease the mass of the object and increase the distance

11. If the distance between two objects is doubled the force becomes what of the original force?

  • 10*
  • 2*
  • 1/4
  • 1/9
  • 1/2

12. Satellites further away do what?

  • Orbit slower
  • Orbit faster

13. How long does a geostationary satellite take to complete one orbit?

  • 12 hours
  • 24 hours
  • 6 hours
  • 48 hours
  • 4 hours

14. What type of satellite enables radio and TV broadcasts?

  • Yellow Satellites
  • Monitoring Satellites
  • Communication Satellites
  • Blue Satellites
  • Natural Satellites