this week in math we have been learning about mass and weight
Mass and weight
An objects mass and its weight are two different things. Mass is the amount of matter in an object, measured in ks. We often (mistakenly) call this our weight. Weight is a force of gravity which acts on an object, measured in N.
It is an important scientific fact that, if air resistance is ignored, all objects fall with an acceleration of 10 m/s2 near the earths surface. Therefore we can write the following version of Newtons second law:
Fw = mg where: Fw is the weight force of an object (in N) m is the mass of an object (in kg) g is the acceleration due to gravity (10 m/s2)
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