Page 12 - Science Class 6 Times Publication

measuring scale should be placed in close contact as well as parallel
to the measuring side.
û 12 13 14 15 6 ü

0 cm 1 2 1 3 4 5 2 6 7 3 8 9 10 4 11 5 0 cm 1 2 1 3 4 5 2 6 7 3 8 9 10 4 11 12 5 13 14 15 6

2. Error due to the use of damaged scale: If the beginning end of the
scale is damaged, the measurement should be started from the
particular number. Otherwise there will be error in reading due to
wrong position of zero(0).

û ü

0 cm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 cm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1 2 3 4 5 6 1 2 3 4 5 6

3. Error due to wrong angle of observation: The eyes of the observer
u u
must be in front of the reading.
ü

û

0 cm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 cm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1 2 3 4 5 6 1 2 3 4 5 6
4. Sometimes the scales are wrongly built: Such scales give wrong
reading while measuring the length of things. So, we should be
careful while buying scales or tapes.

û ü

1 cm 0 4 3 7 5 6 7 4 9 11 11 12 13 14 15 0 cm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1 2 3 4 5 6 1 2 3 4 5 6

Times' Crucial Science and Environment 8 Book 6