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PDF chapter test
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Subjects
Science CBSE
Class 9
Work and energy
Textbook questions
1.
Exercises I
Exercise condition:
2
m.
Look at the activities listed below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
1
.
Suma is swimming in a pond.
Suma is not doing any work
Suma is doing work
2
.
A donkey is carrying a load on its back.
Donkey is not doing any work
Donkey is doing work
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