Module 2: Foundations of Physics

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6 Terms

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Vector

A quantity that has MAGNITUDE and DIRECTION

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Scalar

A quantity that has only MAGNITUDE

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Resultant Force

The NET FORCE acting on an object

Can be found by:

  • Adding forces

  • Using Pythagoras, if at right angles

  • To find an angles use trig

NO resultant force = NO ACCELERATION

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<p>Horizontal and Vertical Components of a force</p>

Horizontal and Vertical Components of a force

  • Horizontal (Fx) = Fcosθ

  • Vertical (Fy) = Fsinθ

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Fundamental Units

  • m (length)

  • kg (mass)

  • s (time)

  • mol (amount)

  • K (temperature)

  • A (current)

  • cd (luminous intensity)

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