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BBiologyPhysicsS1 to S6Support and movement
Movement lab: skeleton, joints and muscles
Lifting a bucket of water needs a surprisingly large force in your arm. Find out how bones, joints and muscles work together.
LevelS1 to S6 (and IGCSE, A Level)
TimeAbout 35 min
You useMoments, F × d
PriceFree: no account
🎯 Aim
To investigate how muscles, bones and joints produce movement.
You will learn to
- Explain the forearm as a lever.
- Calculate muscle forces using moments.
- Describe antagonistic muscles and types of joint.
- Explain the sliding filament model.
🧭 What to do
- Change the Mass held in the hand and read the biceps force.
- Change the Elbow angle: which muscle contracts?
- Choose each Joint and read its movement.
- Move Contraction and watch the sarcomere bands.
- Answer the questions with the class data.
- Write your conclusion and download your lab report.
📋 The data
Biceps force for different loads.
🧠 Investigate: answer from the data
Type your answer and tap Check. Use 💡 Hint first; open the method only when you are stuck.
➕ Get more from this experiment
📝 Free
Print the worksheet (button above), download the data, and save your report. Teachers can project this page in class.
📦 Premium Lab Pack
1 000 RWF
- Practical worksheet: measure your forearm and calculate the biceps force
- Support and movement problems
- Teacher guide and answer key
- Exam-style questions with marking scheme
👩🏫 For teachers
Use it as a practical when apparatus is missing, as homework, or as a project. Free lesson plans help you plan, teach and assess.
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