The document discusses different levers and classifies them as first, second, or third class levers based on the relative positions of the fulcrum, load, and effort. Examples given and their classifications are: - Crowbar: first class lever with fulcrum between effort and load - Nutcrackers: second class lever with load between fulcrum and effort - Wheelbarrow: second class lever with load between fulcrum (wheel) and effort (hands) - Broom: third class lever with fulcrum on one side, resistance on the other, and effort in the middle

1. Which class of levers are these objects? 2º ESO A BILINGUAL SECTION

2. The crowbar We use the crowbar to make force for up objects or things. We use it to help us with somethings that need an extra effort, too. E F L Enrique García Ortea. Second ESO A BILINGUAL SECTION. The crowbar is a FIRST CLASS LEVER because it has the fulcrum between the effort and the load. Crowbar means PALANCA

3. Third class lever Bárbara González Roces

4. Women with a flag Is the therth lever The fulcrum is in the hand that is Below, the load is in beak of the flat and the effort is in the hand that is up. LUCÍA CANELLA

5. NUTCRACKERS LOAD FULCRUM EFFORT 2 nd class lever The nutcrackers are a 2nd class lever because the load is between the fulcrum and the effort we make. JAVIER

6. LOAD FULKRUM EFFORT JENIFER

7. Is a second class lever because the load is between The fulcrum and the effort. The hands are the effort because it makes force, the fulcrum is the wheel because it support the wheel barrow and the load is in the middle. SAMUEL

8. The object is a broom. It is a third-class lever because the fulcrum is in a side, the resistance is in the other side, and the effort is in the middle. F E R CRISTIAN

9. This a first class, because the girl is the load .The fulcrum it`s in the middle of the see saw. And the effort it`s the boy . LOAD FULCRUM EFFORT Natalia Alonso Torre 2ºA nº1

10. FORK It is a first class lever. It has the load in the left, the fulcrum in the middle and the effort in the right It has the fulcrum in the middle. Andrea Díaz García

11. It is a second class lever. It has the fulcrum in the left, the load in the middle and the effort in the right. It has the fulcrum in the left. ANDREA

12. Unit 7: mechanisms THE PLIERS It is a first class lever because: The fulcrum is in the middle. We put the load on the left. And we apply the efforce on the right. IRENE COTO

13. The tweezers is the third class lever, because, the effort is in de tweezers, fulcrun is the hand and the load y the the object catch the tweezrs.

14. E F R CRISTIAN

15. WHEELBARROW CELSO