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Summary iGCSE Physics Pearson Edexcel Topic 1 Forces and Motion Complete Notes $9.90
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Summary iGCSE Physics Pearson Edexcel Topic 1 Forces and Motion Complete Notes

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iGCSE Physics Pearson Edexcel Topic 1 Forces and Motion Complete Notes

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  • February 15, 2023
  • 8
  • 2020/2021
  • Summary
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IGCSE PHYSICS – TOPIC 1
FORCES AND MOTION

a) MOVEMENT AND POSITION

• DISTANCE-TIME GRAPHS – a graph which shows hoe the distance of an
object varied over time. The speed is shown by the GRADIENT of the
line




• DISTANCE-TIME GRAPHS – a graph which shows how the distance of an
object varies over time. The speed is shown by the GRADIENT of the
line

Average Speed (m/s) = Distance Moved/Time Taken
V = s/t


PRACTICAL TO INVESTIGATE: the motion of everyday objects (e.g. ball/car)

Method:

• I will use V = s/t to calculate speed
• Independent variable – distance – measure by tape measure, dropped
from a variety of heights/distances
• Dependent variable – time – measured using a stopclock
• Reapeat each measurement 3 times – take an average
• Use the same object, make sure there is no drafts
• Use a light gate for more accurate results


5

, Acceleration (m/s2) = Change in Velocity/Time Taken
a = (V – U)/t
• VELOCTIY-TIME GRAPHS GRAPHS – a graph which shows how the
velocity of an object varies over time. The acceleration of an object is
known by the GRADIENT (rise/run)




• DISTANCE – the area beneath the graph can tell us the distance
travelled (trapezium – 1/2a+bxh, triangle – 1/2bh)
• If the acceleration of the object is known, to find the time, use formula:

Final Speed = Initial Speed + Acceleration Time
V=u+axt

• Is the time in unknown, but distance is know, use formula:


Final Speed2 = Initial Speed2 + (2 x acceleration x distance)
V2 = U2 + (2 x a x s)




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