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Speed and Velocity
Speed Speed is defined as the rate of change in distance. It is a measure of how fast the distance change in a movement. Speed is a scalar quantity. When a car travels on a road, the average speed of the car can be calculated by using the following calculation: Average speed (=frac{text { distance … Read more
Time
Revision Notes Interval of time is measured using clocks or a stopwatch SI unit for time is the second(s) To find the amount of time it takes a pendulum to makea spin, time ~25 circles and then divide by the samenumber as the number of circles. Videos Click edit button to change this text. Lorem … Read more
Micrometer Screw Gauge
How to use? Rotate the thimble until the wire is firmly held between the anvil and the spindle. To take a reading, first, look at the main scale. This has a linear scale reading on it. The long lines are every millimetre the shorter ones denote half a millimetre in between. Then look at the … Read more