Question

1.Ripening of fruit is a ---------- change.

a) desirable b) reversible c) fast d) undesirable



2. -------------- is an example for fast change.

a) growth of a baby b) ripening of fruit

c) bursting of a balloon d)boiling of water



3. Which of these is not an example of periodic motion?

a)swing b) pendulum c) bowled ball d) rocking chair



4.The length of an ant can be measured in -------------------

a) angul b) millimetre c) nanometre d) centimetre



5.One Kos is equal to ------------- kilometres

a) 1.25 b) 0.25 c) 2.25 d)8.25



6.Spinning of the Earth is a -------------- motion

a) rectilinear b) rotational c) random d) curvilinear

II. Answer in one word 8 x 1 = 8

1. Which organ of our body works in periodic motion?

2. What type of change is the occurrence of day and night?

3. Which animals were used for transport during 2000BC?

4. What is the standard unit of length?

5. What type of change is Rusting of iron?

6. Mention the unit is used when we buy mangoes from markets.

7. Which method of transport would you use to travel from India to USA in the least time?

8. What type of change is melting of ice?

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Answer 1

Answer:

I don't know the answer but I will answer it tomorrow but mark me as the brand list otherwise you will not get the answer