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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?
8. How long does a geostationary orbit last for?
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)?
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
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