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AQA A Level Physics Paper 1 notes
Notes for AQA Physics Paper 1. PowerPoint including keywords and definitions, some diagrams of practicals and some images to aid learning.
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PHYSICS PAPER1 REVISION
,UNITS
Name What it
Base Base unit Base unit Symbol
means
quantity symbol
Length metre m
P peta 1015
Mass kilogram kg T tera 1012
Time second s G giga 109
Current ampere A M mega 106
Temperature kelvin K k kilo 103
m milli 10-3
Quantity Unit Name Unit symbol
μ micro 10-6
force newton N n nano 10-9
power watt W p pico 10-12
energy joule J f femto 10-15
, MOTI Measuring the Final Speed
ON
Definitions:
Speed is change in distance per unit
of a Trolley Using a Light
Gate
Stop
time. clock
Displacement is distance measured in a
straight line from a specific point. PSU Trolley
A scalar quantity has magnitude but no Ligh
Socket
direction. t
A vector quantity has magnitude and gate
direction in a straight line.
Velocity is change of displacement per
unit time.
The precision of an instrument is the Investigating ‘g’ by free fall
smallest non-zero reading that can be using +2as
measured.
A random error is an unpredictable
source of uncertainty in a measurement
which leads to an inconsistency in the
repeat values of that measurement.
Acceleration is velocity change per unit
time.
Uniform acceleration occurs when the
velocity changes by the same amount
each second.
Non-uniform acceleration occurs when
the velocity change each second varies.
If the height had been measured with a
tape measure that had the first 1cm
Tobroken
Learn:off, and you hadn’t noticed, this
A Reminder About Uncertainty Rules
Uncertainty
would have caused an absolute
= ½ x range
systematic error.
Percentage uncertainty = (Uncertainty in Rule 1: If data is to be added or subtracted add the uncertainties
time/ Average value of time) x100 Rule 2: If data is to be multiplied or divided add the percentage uncertainties
An uncertainty is always preceded by a
Rule 3: If a quantity is raised to a power then multiply the percentage uncertainty by that power.
± sign and followed by a unit.
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