1.
Give two examples each, of modes of transport used on land, water and air.
Fill in the blanks:
2.
(1) One metre is
CI
(ii) Five kilometre Is
In.
(111) Motion of a child on a swing is
(iv) Motion of the needle of a sewing machine is
(V) Motion of wheel of a bicycle is
Why can a pace or a footstep not be used as a standard unit of length?
4. Arrange the following lengths in their increasing magnitude:
1 metre, I centimetre, 1 kilometre,millimetre
5. The height of a person is 1.65 m. Express it into cm and mm.
6. The distance between Radha's home and her school is 3250 m. Express this
distance into km.
7 While measuring the length of a knitting needle, the reading of the scale at one
end is 3.0 cm and at the other end is 33. 1 cm. What is the length of the needle?
B. Write the similarities and differences between the motion of a bicycle and a
ceiling fan that has been switched on
-9 Why would you not like to use a measuring tape made of an elastic material like
rubber to measure distance? What would be some of the problems you would
meet in telling someone about a distance you measured with such a tape?
Answers
Answered by
4
Answer:
1) the two examples for land is car and bicycle
air is aeroplane and helicopter
water is ship and submarine
2) one meter is 100cm
3) 5km is 5000meter
4) 1 centimetre, milimeter, meter, 1 kilometres
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Answered by
2
1. Land - bus , Train
Water - boat , ship
Air - helicopter , aeroplane
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