Question

Fill in the blanks:
i) 1 metric tonne= ……….kg

ii) The total surface occupied by an object is called its ………….

iii) The capacity of doing work is called ………….

iv) The efficiency of an ideal machine is …………

v) Simple machines are classified into ………… types​

Answer 1

Answer:

1) 1000kg

2) volume

3) Energy

5) Simple machines are grouped into two families. One is the lever family, and the other is the inclined plane family.

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Answer 2

Answer:

4- 100%

Explanation:

But no machine is ideal.