Question

Why are scissors and pulleys are called simple machines

Answer 1

scissors and pulleysare called simple machines due to following reasons:

1. they dont need any sourceof energy to work

2. they are affordable

3. easily carriable

4. can Be used for doing many activities

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Answer 2

Explanation:

A pair of scissors uses a combined mechanism known as a compound machine. Compound machines are comprised of two or more simple machines in an effort to more efficiently exert force, like the cutting of an object. The blades of the scissors are a pair of wedges in a cross shape which pivot around a fulcrum.