AQA GCSE PE: First, Second and Third Class Lever Systems & Mechanical Advantage | Movement Analysis

AQA GCSE PE: First, Second and Third Class Lever Systems & Mechanical Advantage | Movement Analysis | Levers | AQA Paper 1

This video will help you understand first, second and third class lever systems within sporting examples, as well as mechanical advantage and disadvantage. It is in hope that this video will help strengthen and consolidate your understanding, which will prove pivotal during your paper 1 examination.

You need to be able to do the following:

Identify first, second and third class lever systems. Draw basic drawings of the three classes of lever to illustrate the positioning of:
• fulcrum / pivot
• load (resistance)
• effort.

Draw linear versions of a lever, showing the positioning of the fulcrum/pivot, load/resistance and effort.

You must be able to link the correct lever to a sporting movement or action.

Interpret sporting movements or actions which involve flexion or extension of the elbow and/or knee, and plantar or dorsi-flexion at the ankle.

You also need to be able to:

Label the effort arm and load/resistance arm on the three classes of lever.

Explain mechanical advantage = effort arm ÷ weight (resistance) arm.

Label the effort arm and resistance arm on lever drawings, and interpret the mechanical advantage of that lever.

I have attached the AQA specification below where you can read about this.

Key terms: first, second & third class lever systems, lever, fulcrum, pivot, resistance, load, effort, muscle, joint, movement, mechanical advantage, mechanical disadvantage, effort arm, resistance arm, football throw (1st class lever), calf raise (2nd class lever), bicep curl (3rd class lever).

As ever, if you require any assistance please leave a comment in the section below.

[adeshewaadebayo]

Hi sir got my mocks back i got 66/78 on paper 1 and 71/78 on paper 2 couldn't have done it without you thanks so much :)

[suupakhan]

Amazing work keep it up Mr Matthews. Your teaching the new generation a great amount!!

[humzell]

The quality of the video and detailed explanation is great. These videos are so helpful!

[rajanram]

Thank you again Mr Matthews! Amazing stuff! Very helpful 🙏🏽

[fantasticism]

wait what about the first class lever? Does it have no mechanical advantage?