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Figure 5 shows a shot putter in two different positions (A and B) as they release the shot - AQA - GCSE Physical Education - Question 15 - 2022 - Paper 1
Question 15
Figure 5 shows a shot putter in two different positions (A and B) as they release the shot. Identify the class of lever used at the elbow as it moves from A to B. ... show full transcript
Worked Solution & Example Answer:Figure 5 shows a shot putter in two different positions (A and B) as they release the shot - AQA - GCSE Physical Education - Question 15 - 2022 - Paper 1
Step 1
Identify the class of lever used at the elbow as it moves from A to B.
Answer
The class of lever used at the elbow as it moves from position A to position B is a first-class lever. In this type of lever, the fulcrum is located between the effort and the load. In the context of the shot putter, the elbow acts as the fulcrum, with the effort applied by the muscles in the arm and the load being the weight of the shot.
Step 2
Draw a fully labelled diagram to show the class of lever identified in Question 15.1.
Answer
Below is a diagram illustrating a first-class lever:
Load / resistance
|
|
Effort ----> Fulcrum
In this diagram:
- The Load / resistance represents the weight of the shot.
- The Fulcrum represents the elbow joint.
- The Effort represents the force applied by the muscles in the arm, which is applied above the elbow.