Measurement of Length and Motion
Class 6 · Science · 13 Questions
Some lengths are given in Column I of Table 5.5. Some units are given in Column II. Match the lengths with the units suitable for measuring those lengths. Table 5.5: Column I - Distance between Delhi and Lucknow, Thickness of a coin, Length of an eraser, Length of school ground; Column II - centimetre, kilometre, metre, millimetre
Read the following statements and mark True (T) or False (F) against each.
Which of the following is not a standard unit of measuring length?
Search for the different scales or measuring tapes at your home and school. Find out the smallest value that can be measured using each of these scales. Record your observations in a tabular form.
Suppose the distance between your school and home is 1.5 km. Express it in metres.
Take a tumbler or a bottle. Measure the length of the curved part of the base of glass or bottle and record it.
Measure the height of your friend and express it in (i) metres (ii) centimetres and (iii) millimetres.
You are given a coin. Estimate how many coins are required to be placed one after the other lengthwise, without leaving any gap between them, to cover the whole length of the chosen side of a notebook. Verify your estimate by measuring the same side of the notebook and the size of the coin using a 15-cm scale.
Give two examples each for linear, circular and oscillatory motion.
Tasneem wants to make a metre scale by herself. She considers the following materials for it—plywood, paper, cloth, stretchable rubber and steel. Which of these should she not use and why?
Think, design and develop a card game on conversion of units of length to play with your friends.
Can you find the thickness of a single page of your notebook or textbook using a scale? Think of a way and write it. Carry out the activity and report your result.
Discuss with elders in your community what units were used for measurement of length in the olden days. Also, using the internet, try to find out about the length scales found in excavations of archaeological sites in India.