Question

1)How many types of simple machines are there?
2) what is a simple machine?
3) what is a pulley? give examples​

Answer 1

Answer:

1) six simple machines

Types of Simple Machines

• Inclined plane.
• Lever.
• Wedge.
• Wheel and axle.
• Pulley.
• Screw.

2) simple machine, any of several devices with few or no moving parts that are used to modify motion and the magnitude of a force in order to perform work. ... The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw.

3) Examples of pulleys include: ... You pull the cord on the blinds and the pulley system causes the blinds to open or close. Flagpoles use pulleys in order to hoist the flag up or to bring it down. You pull the string on the pulley and the flag runs up or down the pole.

Explanation:

$hope \: it \: helps \: you$

Answer 2

Explanation:

There are three main types of simple machines; a lever, a pulley, and an inclined plane. A lever is a rod or board with a pivot point called a fulcrum.