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physics - measurement (prefixes (milli : m ; /1000, centi : c ; /100, deci…
physics - measurement
physical quantities / si units: a quantity that can be measured and consists of a numerical magnitude and unit
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focus on time
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precautions
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do not displace pendulum at a large angle , the angle should be 5 degrees or less to minimise effect of air resistance
time 20 oscillations or more and calculate average timing to reduce significance of human reaction time in stopping the stopwatch
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the shorter the string of the pendulum , the faster the pendulum swings
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