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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?
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