g481 definitions

1. Force per unit area in Pa. (8)
3. When there is zero resultant force acting on an object. (11)
6. The mass per unit volume in kgm-3. (7)
7. A quantity with both magnitude and direction eg: velocity, force, acceleration and electric current. (6)

1. Power is the rate at which work is done, it is measured in Watts- a unit of power (1W=1J) (5)
2. A materials ability to deform under tensile stress. (7)
3. The object can return to its original shape once the deforming force is removed. (7, 11)
5. A material that distorts very little even when subject to a large stress and does not exhibit any plastic deformation. (7)
8. The speed of an object at a moment in time- a cars speedometer gives the drivers an instantaneous speed. (13, 5)
10. The extension per unit length (it has no units- it's dimensionless) (6)

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