Activity 2: Job Well Done! - Six simple machines allow humans to do work more simply. Write the proper simple machine for each job. 1. I couldn't lift the box into the truck, so I pushed it up using 2. I used a crowbar like a to pry open the cement cover. 3. The peanut butter lid twisted onto the jar like a 4. Jack pulled the bucket of water up easily by using the attached to the well. 5. Jill attached a at the base of a wooden platform so it can be pushed easily.​