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Slide 2

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Forces and their affects
PHYSICS 2A…read more

Slide 3

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SPEED AND VELOCITY
Speed is how fast you are going
Velocity is how fast you are going AND what
direction you are going in.…read more

Slide 4

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The graph on the right is a distance
time graph. It is labelled with
different numbers. Section one of the
graph shows that the object is
travelling at a steady speed. Section
two shows it is stationary. Section
three shows it accelerating. Section
four shows it decelerating and section
five shows that the object is going
back to the start. The gradient of any
part of the line shows how fast the
object is moving. To find this divide
the distance for the section you are
interested in by the length of time of
the section you are interested in. The
bigger the gradient, the faster the
object is moving.
DISTANCE-TIME GRAPHS…read more

Slide 5

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The graph on the right is a velocity
time graph. It is labelled with
different numbers. Section one of the
graph accelerating. Section two
shows it is travelling at a steady
speed. Section three shows an
increase in acceleration. Section four
shows a decrease in acceleration and
section five shows the object
decelerating. The gradient of any part
of the line shows the acceleration.
The gradient is the change in velocity
divided by the time taken for the
change. The are underneath any
section of the graph is equal to the
distance travelled in that time
interval.
VELOCITY- TIME GRAPHS…read more

Slide 6

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ACCELERATION
To Calculate acceleration, you divide the
change in velocity by the time taken.…read more

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