Difference between revisions of "Force and Density"
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* The weight of a body acts through the centre of gravity | * The weight of a body acts through the centre of gravity | ||
* The principle of moments | * The principle of moments | ||
| − | * The upward force on a | + | * The upward force on a light beam varies with the position on a heavy object placed on the beam |
* How extension varies with applied force for helical springs, metal wires and rubber bands | * How extension varies with applied force for helical springs, metal wires and rubber bands | ||
* Hooke's Law | * Hooke's Law | ||
Revision as of 08:21, 16 April 2009
Lesson Order
- 4-FAD-01 Scalars and vectors
- 4-FAD-02 Moments and Centre of Gravity
- 4-FAD-03 Principle of moments
- 4-FAD-04 Hooke's Law
- 4-FAD-05 Pressure
- 4-FAD-06 Density
- 4-FAD-07 Revision and test
Topics covered
- The difference between scalars and vectors
- Adding forces along a line
- Recall and use of Moment = force x perpendicular distance from pivot
- The weight of a body acts through the centre of gravity
- The principle of moments
- The upward force on a light beam varies with the position on a heavy object placed on the beam
- How extension varies with applied force for helical springs, metal wires and rubber bands
- Hooke's Law
- Elastic behaviour and plastic deformation
- Pressure = force / area
- Density = mass / volume
- Direct measurement of the density of solid, liquid and gas
