FORCE AND MOTION
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FORCE AND MOTION
All living-beings can move. Both simple and sophisticated machines are governed by the same principles. Different kinds of force, their definitions, examples and characteristics. Balanced forces. Definition of the movement of a force. Summary.
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INTRODUCTION
- All living-beings and those objects which surround us either move or have the capacity of moving at any given moment.
- Every machine is based on the same principle which is, in turn, based on the forces which govern the movement and keep the balance of all the bodies in the universe
- For any kind of movement to take place, we need at least one force.
- There are bodies which exercise forces upon others without their maintaining any physical contact between them.
- Gravitational forces.
FORCES
- What is force?
- Friction
- Resistance to movement
- Dynamometers. Units to measure forces: Newton. Kilopounds.
- The intensity of a force.
- The wind-tunnel
- The sum of the forces is not always produced in rectilinear motion.
MOMENT OF A FORCE
- When a force is applied to a solid body, a rotational movement around an axis may be produced.
- The moment of a force.
- Coupled-forces
SUMMARY |
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