Pulleys

Today we watched a clip about pulleys and how they work.  CLIP

We brainstormed what we already know about pulleys:

We also had some questions (wonderings):

1. Is the part that we pull on a curtain a lever? - 
2. Can you use a pulley to move a bed? - HL
3. Does a pulley have to be on a wall (up high) or can it be on the floor - JW