Correct way of measuring lengths

Transcript

What is correct way to place scale? Wrong Method Correct Method Here, Scale is tilted Here, Scale is in Straight line What is correct position of eye while measuring through scale? Correct Position of the eye is B We should place our eyes directly above the Pencil What if Scale is broken? If 0 is broken then we will start with 1. Then you must subtract the reading of this mark from the reading at the other end. For example, in Figure, the reading at one end is 1.0 cm and at the other end, it is 10.4 cm. Therefore, the length of the object is 10.4 cm – 1.0 cm = 9.4 cm. How do visually challenged measure through Scale? They use scales with raised markings that can be felt by touching them Mention units with Measurement After measuring lengths, we need to write them down and always mention units Correct Way 4 Centimetres or 4 cm Wrong Way 4 4 CM 4 CM 4 cms 5 cm. 10 Kilometres or 10 km 10 10 Km 10 KM 10 Km.