C. Short answer questions.
1. What is the need to know the distances? Give three reasons.
2. Give three examples where knowledge of distance is necessary.
3. Give a list of quantities that need to be measured in everyday life.
4. Why cannot hand span be used as a standard unit of length measurement?
5. Why is a standard unit of measurement of length required?
6. What is measurement? What is the need for correct measurements?
the other end it is 57.2 cm. What is the length of the box?
7. While measuring the length of a cardboard box, the reading of the scale at one end is 5.6 cm 2002
8. Distinguish between rectilinear and curvilinear motion.
9. How is the motion of a moving wheel of a bicycle different from that of a moving fan?
10. All oscillatory motions are periodic motions. Explain.
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1) We need to measure distance because it is needed to calculate other things like speed, time taken in a journey and much more... It helps us to make decisions based on the outcome of distance (it's a very important thing when it comes to travel in space).
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