a) why could you not use an elastic measuring tape to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with an elastic tape? b) list 2 precautions to be taken while measuring the length.
Answers
Answer:
a.
An elastic measuring tape is stretchable. It cannot be used to measure distances because the length of the tape may change on stretching. ... If you measure the length of an object twice using an elastic tape, then you may get different values of the same length each time. This is because elastic tapes are stretchable.
b.
●Care should be taken to keep the ruler along the lenght of the object.
●If the edge of the ruler is worn out or broken, the measurement should be srarted from any other mark that is fully clear. ...
●Eyes should be exactly obve the point where the measurement is to be taken.
(i) The length of the elastic tape varies and depends upon the force by which it is stretched.
(ii) Measurement would vary between 2 or 3 readings even when measured by the same person and by the same elastic tape.
(iii) Measurement would also vary if different persons measure the same distance.: