Simple Machine: Pulley

Today we are going to be learning all about Pulleys! and how they work but lets do a quick review first!

What is a machine?

What five simple machines have we talked about already? 

What do machines do for us?

What is a Force?

What is a Load?

Pulley

Used to help lift heavy things!

Has two main parts a rope and wheel. The wheel has a grove for the rope to sit in. 

Pull the rope to life the heavy load. 

Lets Review!

What is the job of a pulley?

What are its two main parts?

What are some examples of a pulley?

An extra video to watch if time