Free Body Diagram
Also known as: FBD, force diagram
A diagram that represents a single object and shows all external forces acting on it as labeled arrows. Drawing a free body diagram is the essential first step in solving any force or motion problem.
💡 Intuition
A simplified picture that shows every push and pull acting on one isolated object.
Core Idea
Isolate one object and show all external forces acting on it.
🔬 Example
🎯 Why It Matters
Drawing a free body diagram is the essential first step in solving any force or motion problem.
⚠️ Common Confusion
Only draw forces ON the object, not forces the object exerts on others.
Related Concepts
Next Steps
How Free Body Diagram Connects to Other Ideas
To understand free body diagram, you should first be comfortable with force and vectors. Once you have a solid grasp of free body diagram, you can move on to newtons second law and equilibrium.
Go Deeper
Frequently Asked Questions
What is Free Body Diagram in Physics?
A diagram that represents a single object and shows all external forces acting on it as labeled arrows.
Why is Free Body Diagram important?
Drawing a free body diagram is the essential first step in solving any force or motion problem.
What do students usually get wrong about Free Body Diagram?
Only draw forces ON the object, not forces the object exerts on others.
What should I learn before Free Body Diagram?
Before studying Free Body Diagram, you should understand: force, vectors.
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