1) Why handspan cannot be used as a standard unit of length measurement?
2) Clouds and rains are moving yet they are non-living. Elaborate.
3) All oscillatory motions are periodic motions. Explain.
4)Differentiate between living things and non-living things.
5)Describe any three types of motions
with examples.
6) Describe an activity to show that light travels in a straight line.
2) Clouds and rains are moving yet they are non-living. Elaborate.
3) All oscillatory motions are periodic motions. Explain.
4)Differentiate between living things and non-living things.
5)Describe any three types of motions
with examples.
6) Describe an activity to show that light travels in a straight line.
Answers & Comments
Verified answer
Answer:
ans1. footsteps or hand span of two persons are used to measure the length respectively, then the two distances may not be equal.
refer the attachment
hope it helps you