by Sydney Graham

Chapter 2.

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Magnitude – A numerical value
with units.

A VECTOR is ANY quantity in
physics that has BOTH MAGNITUDE and DIRECTION.

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Determining resultant magnitude

-You use the Pythagorean Theorem

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•Distance is a scalar quantity which refers to the total

of how far an object has moved during its motion

•Displacement is a vector quantity which refers to

the object's change in position. The shortest straight
line from the starting point to the ending point
with a direction.

∆x = xf - xi

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Speed- A scalar quantity of
the rate of change in position.

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Velocity- Average velocity is
displacement divided by the time interval

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Speed – has no
direction (scalar) Velocity – has both
speed and direction (vector)

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Acceleration measures
the rate of change of velocity over time.

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In the absence of air
resistance, all objects dropped near the surface of the Earth fall with the
same constant acceleration.

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vf2 = vi2 +2aΔy

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