問 1
1 点In the human body, the second-class lever system provides a significant mechanical advantage. In which sporting action is a second-class lever being utilised?
AQA GCSE · Physical Education 8582
Lever systems and mechanical advantage：練習問題
その場で採点される選択問題 5 問と、解説つきの記述問題 1 問。すべて「Lever systems and mechanical advantage」からの出題です。
6 問9 点無料・登録不要
問 2
1 点A sportsperson is using a lever where the effort arm is \(5\text{cm}\) and the load arm is \(35\text{cm}\). Calculate the mechanical advantage and identify which sporting action most likely uses this system.
問 3
1 点When a basketball player performs a vertical jump, they utilize a lever system at the ankle to propel themselves upwards. Identify the order of the components in this lever system and the mechanical advantage it provides.
問 4
1 点In a third-class lever, such as the elbow during a bicep curl, the effort arm is always shorter than the resistance arm. What is the primary mechanical benefit of this arrangement for a tennis player hitting a smash?
問 5
1 点A first-class lever is used when an athlete extends their neck to look up at a high ball. If the distance from the fulcrum to the muscle attachment (effort) is shorter than the distance from the fulcrum to the head's center of mass (load), what is the mechanical advantage?
問 6
4 点A sprinter is performing a stationary start from the blocks. Explain why the ankle joint acts as a second-class lever during the drive phase, and identify the mechanical advantage this specific lever system provides for the movement.
まず自分で答えを書いてから、解説と照らし合わせましょう。
※ thinkaのコンテンツはAIにより生成されているため、内容が正確でない場合があります。補助教材としてご使用いただき、公式の教材と合わせてご確認ください。
模範解答は見ました。次はあなたの答案を採点します。
このページは良い答案の形を示せますが、あなたの答案に何が足りないかは教えられません。thinka は実際の採点基準に沿って記述答案を約 15 秒で採点します。
同じような問題をもっと解きたい？このトピックの新しい問題を、解きながら採点。
練習を始める