English, 02.03.2021 18:40 dacas7300

Se reasons. inclined, a
(b) A pulley used in a well helps us in pulling out water
(c) A pair of scissors is a simple machine.
(d) A simple machine makes our work easier and faster
(e) Wedge is important in our daily life
Answer the following questions.
al What is a simple machine? Give any two examples.
Yo) Enlist the different types of simple machines used at your house
(c) In how many ways do simple machines make our work easier
d) How can a simple machine lift a heavy load with small effort?
ey Define pulley. What is the use of a pulley?
How does wheel and axle won
(a) It is more difficult to climb a vertical staircase than a slantes eit is more difficult to climb a vertical staircase dena stat1

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Se reasons. inclined, a
(b) A pulley used in a well helps us in pulling out water
(c) A p...

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