IP2.2.6 Acceleration and mass © Oxford University Press 2011 Acceleration and mass.

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Presentation transcript:

IP2.2.6 Acceleration and mass © Oxford University Press 2011 Acceleration and mass

IP2.2.6 Acceleration and mass © Oxford University Press 2011 The mass of an object affects its acceleration for a given force. Imagine kicking these two objects, which is likely to accelerate more? If you kicked them with the same force the football would accelerate more than the concrete block. This is because the football is lighter.

IP2.2.6 Acceleration and mass © Oxford University Press 2011 The resultant force acting on an object, its mass and its acceleration are related in this equation: resultant force = mass  acceleration (newtons, N) (kilograms, kg) (metres per second 2, m/s 2 ) If the resultant force is called F, the mass m and the acceleration a, then: F = m  a

IP2.2.6 Acceleration and mass © Oxford University Press 2011 The acceleration of an object can be calculated: The space shuttle has a total mass of kg and produces a resultant force of 24.9 million newtons. Rearrange the equation, resultant force = mass × acceleration, to: acceleration= or a = a=a= a= m/s 2