Lever
- Definition: A lever is a rigid bar that rotates around a fixed point called a fulcrum.
- Types:
- First-Class Lever: Fulcrum is located between the effort and the load (e.g., seesaw).
- Second-Class Lever: Load is between the fulcrum and the effort (e.g., wheelbarrow).
- Third-Class Lever: Effort is between the load and the fulcrum (e.g., tweezers).
- Definition: A lever is a rigid bar that rotates around a fixed point called a fulcrum.
- Types:
- First-Class Lever: Fulcrum is located between the effort and the load (e.g., seesaw).
- Second-Class Lever: Load is between the fulcrum and the effort (e.g., wheelbarrow).
- Third-Class Lever: Effort is between the load and the fulcrum (e.g., tweezers).