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6. What is the principle of moments?
- Total anticlockwise moments = 2x total clockwise moments
- Total anticlockwise moments = total clockwise moments
- Total anticlockwise moments = 1/2 total clockwise moments
7. What types of materials obey Hooke's Law?
- Plastic materials
- Elastic materials
- Natural materials
- Magnetic materials
8. How do you increase the moment?
- Only increasing the force
- Decreasing the force and increasing the distance
- Increasing the distance or the force
- Increasing the distance but never the force
9. What occurs if anti clockwise moments and clockwise moments aren't equal?
- There will be a resultant force in a certain direction causing the object to turn
- There will be zero resultant force and the object will stay in equilibrium
- There will be a resultant force acting downwards
10. What is Hooke's Law?
- The extension of a spring and the force acting on it have no correlation
- The extension of a spring is proportional to the force acting on it
- The extension of a spring is indirectly proportional to the force acting on it
11. How do you find the centre of gravity of a freely suspended object?
- It will swing until its centre of gravity is vertically below the point of suspension
- It will swing until it falls under its centre of gravity
- It will pivot until its centre of gravity is vertically bellow the point of suspension
12. What is the equation linking moment, force and distance?
- Moment = Perpendicular Distance from Pivot/Force
- Moment = Force x Perpendicular Distance from Pivot
- Moment = Force + Perpendicular Distance from Pivot
- Moment = Force/Perpendicular Distance from Pivot