1. What is Mechanical Advantage?

Definition: Mechanical Advantage (MA) measures how much a simple machine multiplies the input force.

Purpose: It helps us understand how simple machines make work easier by increasing force or changing its direction.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( MA \) — Mechanical Advantage (no units)
• \( F_{out} \) — Output force (Newtons, N)
• \( F_{in} \) — Input force (Newtons, N)

Explanation: If MA > 1, the machine multiplies your force. If MA = 1, it only changes direction. If MA < 1, it decreases force but increases distance.

3. Types of Simple Machines

Details: There are six basic simple machines:

1. Lever
2. Wheel and axle
3. Pulley
4. Inclined plane
5. Wedge
6. Screw

4. Using the Calculator

Tips: Measure the force you apply (input) and the force the machine produces (output). Enter both values in Newtons (N).

5. Frequently Asked Questions (FAQ)

Q1: What does MA = 2 mean?
A: It means the machine doubles your input force (you push with 1N, it outputs 2N).

Q2: Can MA be less than 1?
A: Yes! Some machines trade force for distance (like using a long ramp).

Q3: What's the MA of a single fixed pulley?
A: MA = 1 - it changes direction but doesn't multiply force.

Q4: How do levers create mechanical advantage?
A: By changing the distances from the fulcrum - longer input arm = more MA.

Q5: Why don't machines give infinite MA?
A: You always trade force for distance - energy is conserved!