# Year 10 Pathway C Mr. D. Patterson

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Year 10 Pathway C Mr. D. Patterson
Classical Physics Year 10 Pathway C Mr. D. Patterson

Outcomes State Newton’s second law of motion
Apply Newton’s second law to simple situations Use F=ma to solve for unknown values

May the force be with you
A force is a push or pull which may: A) Change the shape of an object B) Change the velocity of an object Force Force

Newton’s First Law - review
An object at rest..... stays at rest An object in motion.... stays at a constant velocity Unless acted on by an unbalanced force.

Newton’s Second Law The acceleration of an object is proportional to the unbalanced force acting on that object and inversely proportional to the mass

Newton’s Second Law The acceleration of an object is proportional to the unbalanced force acting on that object and inversely proportional to the mass The acceleration of an object is proportional to the unbalanced force Large Force = Large Acceleration

Newton’s Second Law The acceleration of an object is proportional to the unbalanced force Small Force = Small Acceleration

Newton’s Second Law The acceleration of an object is proportional to the unbalanced force acting on that object and inversely proportional to the mass The acceleration of an object is inversely proportional to the mass Large Mass = Small Acceleration Small Mass = Large Acceleration

In mathematical terms.. Newton’s second law as a formula:
F is force (N) m is mass (kg) a is acceleration (ms-2 )

Make a magic triangle if it helps
Example Problem Make a magic triangle if it helps What force is required to push a 1000 kg car with an acceleration of 1.5 ms-2? What acceleration can be achieved by pulling a 20 kg cart with a force of 45 N?

Outcomes State Newton’s second law of motion
Apply Newton’s second law to simple situations Use F=ma to solve for unknown values Matthew and Winters Sets 15 and 16