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Label the load, effort and fulcrum on the diagram below - Leaving Cert Physical Education - Question Question 1 - 2020
Question Question 1
Label the load, effort and fulcrum on the diagram below. (b) Identify the class of lever illustrated by the diagram.
Worked Solution & Example Answer:Label the load, effort and fulcrum on the diagram below - Leaving Cert Physical Education - Question Question 1 - 2020
Step 1
Label the load, effort and fulcrum on the diagram below.
Answer
In the provided diagram:
- Load: This is the weight that is being lifted or moved, represented by the head. It is typically found at the far end of the lever arm.
- Effort: This is the force applied to lift the load, represented by the muscles connected to the skull or the neck. It is located between the fulcrum and the load.
- Fulcrum: This is the pivot point around which the lever turns, represented by the top of the vertebral column or the atlanto-occipital joint connecting the skull to the spine.
Step 2
Identify the class of lever illustrated by the diagram.
Answer
The class of lever illustrated in the diagram is a Class 1 Lever. In a Class 1 lever, the fulcrum is positioned between the load and the effort. A common example is the neck where the head acts as the load, the neck muscles exert effort, and the atlanto-occipital joint serves as the fulcrum.